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Identifikasi Jenis Lepidoptera di Kecamatan Koto Tujuh, Kabupaten Sijunjung, Sumatera Barat
Full text linkButterflies were part of the Lepidoptera has an important role as a bioindicator of environmental change. This study aims to identify the types of Lepidoptera found in Kec. Koto Tujuh, Kab. Sijunjung, West Sumatra. We used the survey method with a purposive sampling technique divided into three zones: residential, forest edges, rice fields and plantation. We found 23 species of Lepidoptera belonging to five families, namely Nymphalidae (11 species), Lycaenidae (1 species), Papilionidae (4 species), Hesperiidae (2 species), and Pieridae (5 species), with the total number 59 individuals.Kupu-kupu merupakan bagian dari ordo Lepidoptera yang memiliki peranan penting sebagai bioindikator perubahan lingkungan. Penelitian ini bertujuan untuk mengidentifikasi jenis Lepidoptera yang terdapat di Kec. Koto Tujuh, Kab. Sijunjung, Sumatera Barat. Metode yang digunakan adalah metode survei dengan teknik purposive sampling, dimana titik pengambilan sampel dibagi menjadi tiga zonasi yaitu zona pemukiman warga, tepi hutan serta sawah dan ladang. Hasil identifikasi jenis kupu-kupu didapatkan 23 spesies Lepidoptera yang tergolong pada lima famili yaitu famili Nymphalidae (11 spesies), Lycaenidae (1 spesies), Papilionidae (4 spesies), Hesperiidae (2 spesies), dan Pieridae (5 Spesies), dengan jumlah total 59 individu
Optimization of Information and Communication Technology: Digital Innovation for Sustainable Agriculture
No full textThe development of the times in the generation Z era, uses information technology so much that it cannot be separated from today’s daily life. This requires us to increasingly utilize this technology to provide positive impacts rather than negative effects. One use that can be used in the field of biology is to provide digital innovation to help people understand how to learn about oyster mushroom cultivation by the community. Fungi are a group of multicellular eukaryotic fungi with body parts consisting of a base. The group of fungi that have a basidium or are known as fruiting bodies are a group of macroscopic fungi. This group of macroscopic fungi has very high nutritional value. High protein and cellulase are one of the nutritional values contained in these fungi. Macroscopic fungi are often found in forest areas or plantations in rural areas. Edible mushrooms are a food ingredient that contains complete nutrition. Fungi can also be used as a medicinal ingredient. Ling-zhi fungus (Ganoderma sp.) is an ingredient in anticancer drugs, increasing fitness, lowering blood sugar, lowering cholesterol, destroying carcinogens, and antibacterial. Shiitake (Lentinus edodes), maitake (Grifola frondosa) and oyster (Pleurotus sp.) mushrooms have been used as antimicrobial, anti-inflammatory, antioxidant, anti-cholesterol, anti-cancer, antiviral and immunomodulator (Wasser, 2002). The benefits and knowledge regarding the potential of large mushrooms have not been well explored. One of the efforts that will be made in community service in Rajadesa village is to provide knowledge to the surrounding community to utilize the potential of natural resources around the village in order to cultivate large mushrooms, namely Pleurotus sp. The potential for villages with cold temperatures can be used as a place for mushroom cultivation coupled with the optimization of simple information technology to assist in the extension process. The results of the technological innovation used in the service will be carried out for two days with the education stage on how important it is to have the ability to cultivate mushrooms. The next stage is counseling regarding techniques for cultivating large mushrooms by utilizing the natural potential that exists in the countryside. As a result of the service, it is hoped that the community will have knowledge about the health benefits of mushrooms, the types of mushrooms that can be cultivated and education regarding mushroom cultivation techniques.The development of the times in the generation Z era, uses information technology so much that it cannot be separated from today’s daily life. This requires us to increasingly utilize this technology to provide positive impacts rather than negative effects. One use that can be used in the field of biology is to provide digital innovation to help people understand how to learn about oyster mushroom cultivation by the community. Fungi are a group of multicellular eukaryotic fungi with body parts consisting of a base. The group of fungi that have a basidium or are known as fruiting bodies are a group of macroscopic fungi. This group of macroscopic fungi has very high nutritional value. High protein and cellulase are one of the nutritional values contained in these fungi. Macroscopic fungi are often found in forest areas or plantations in rural areas. Edible mushrooms are a food ingredient that contains complete nutrition. Fungi can also be used as a medicinal ingredient. Ling-zhi fungus (Ganoderma sp.) is an ingredient in anticancer drugs, increasing fitness, lowering blood sugar, lowering cholesterol, destroying carcinogens, and antibacterial. Shiitake (Lentinus edodes), maitake (Grifola frondosa) and oyster (Pleurotus sp.) mushrooms have been used as antimicrobial, anti-inflammatory, antioxidant, anti-cholesterol, anti-cancer, antiviral and immunomodulator (Wasser, 2002). The benefits and knowledge regarding the potential of large mushrooms have not been well explored. One of the efforts that will be made in community service in Rajadesa village is to provide knowledge to the surrounding community to utilize the potential of natural resources around the village in order to cultivate large mushrooms, namely Pleurotus sp. The potential for villages with cold temperatures can be used as a place for mushroom cultivation coupled with the optimization of simple information technology to assist in the extension process. The results of the technological innovation used in the service will be carried out for two days with the education stage on how important it is to have the ability to cultivate mushrooms. The next stage is counseling regarding techniques for cultivating large mushrooms by utilizing the natural potential that exists in the countryside. As a result of the service, it is hoped that the community will have knowledge about the health benefits of mushrooms, the types of mushrooms that can be cultivated and education regarding mushroom cultivation techniques
Brine Shrimp Lethality Test (BSLT) of 96% Ethanol Extract of Ande-ande Lumut (Selaginella doederleineii) Leaves
Full text linkSelaginella doederleineii is a fern plant that is efficacious for treating coughs, pneumonia and broken bones. Leaves are the primary medicinal parts. However, there has been no research regarding the toxicity of Selaginella doederleineii leaves. This study aims to evaluate potential toxicity of 96% ethanol extract of Selaginella doederleineii leaves against shrimp larvae (Artemia salina Leach) using the Brine Shrimp Lethality Test (BSLT) method. The toxicity value is shown by the LC50 value. This research method includes the extraction stage, larvae hatching stage, stock solutions and concentration dilutions of the extract preparation, toxicity test and LC50 value calculation. The toxicity test using 10 Artemia salina shrimp larvae were exposed to each test concentration (0 ppm, 1 ppm, 2 ppm, 3 ppm, 4 ppm, 5 ppm) in triplicate. Larval mortality was assessed after 24 hours to calculate mortality percentage and LC50. The results showed that the LC50 value for the 96% ethanol extract of Selaginella doederleineii was 12.0221 ppm, indicating very toxic. It can be concluded that Selaginella doederleineii leaves exhibits significat toxicity to brine shrimp and potential to be developed as a raw material for anti-cancer drugs. Selaginella doederleineii is a fern plant that is efficacious for treating coughs, pneumonia and broken bones. Leaves are the primary medicinal parts. However, there has been no research regarding the toxicity of Selaginella doederleineii leaves. This study aims to evaluate potential toxicity of 96% ethanol extract of Selaginella doederleineii leaves against shrimp larvae (Artemia salina Leach) using the Brine Shrimp Lethality Test (BSLT) method. The toxicity value is shown by the LC50 value. This research method includes the extraction stage, larvae hatching stage, stock solutions and concentration dilutions of the extract preparation, toxicity test and LC50 value calculation. The toxicity test using 10 Artemia salina shrimp larvae were exposed to each test concentration (0 ppm, 1 ppm, 2 ppm, 3 ppm, 4 ppm, 5 ppm) in triplicate. Larval mortality was assessed after 24 hours to calculate mortality percentage and LC50. The results showed that the LC50 value for the 96% ethanol extract of Selaginella doederleineii was 12.0221 ppm, indicating very toxic. It can be concluded that Selaginella doederleineii leaves exhibits significat toxicity to brine shrimp and potential to be developed as a raw material for anti-cancer drugs.
Analisa Resiko Kesehatan Cemaran Kromium (Cr) pada Beras di Kecamatan Banguntapan, Yogyakarta: Health Risk Analysis of Chromium (Cr) Contamination in Rice in Banguntapan District, Yogyakarta
Full text linkThe leather tanning process using chromium has the potential to cause environmental and health risks. Chromium that is not absorbed by the product will become liquid waste and is simply discharged into water bodies, causing a decrease in water quality, accumulation in soil and rice plants. Rice is the staple food of the Indonesian people and is a source of energy that is needed by the community Rice that has accumulated chromium can be a risk to human health. The purpose of this study is to determine the concentration of hexavalent chromium contained in rice, determine the intake rate based on age group, determine the effect of hexavalent chromium on health risk analysis. The location of this research was in the village of jambidan pedukuhan Combongan, Pamotan, Ponegaran, Kretek Banguntapan sub-district. Hexavalent chromium analysis test on 15 grams of rice samples using HACH DR 2700 Spectrophotometer. Hexavalent chromium in rice samples 0 - 0.901 mg/kg with a mean value of 0.266 mg/kg. The daily chromium intake rate of the community ranged from 0 - 4250 μg / day with an average of 919 μg / day exceeding the quality standard set by WHO of 0.023 μg / day. Health risk analysis of the risk level is unsafe because the RQ value> 1 or the average Non Carcinogen Intake of each Pedukuhan (1.56 mg/kg.day). Carcinogenic Intake in each Pedukuhan The risk level is unsafe because the average intake (6.67E-01) times SF (0.5) ERC value> E-4 exceeds the safe limit set by WHO (E-4). Hexavalent chromium concentration factor is significant with age body weight and length of stay of respondents.
Keywods: Hexavalent Chromium, Rice, Health Risk Analysis.
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Abstrak
Proses penyamakan kulit menggunakan kromium berpotensi menyebabkan risiko lingkungan dan kesehatan, Kromium yang tidak diserap oleh produk akan menjadi limbah cair dan dibuang begitu saja ke badan air sehingga menyebabkan penurunan kualitas air, terjadinya akumulasi pada tanah dan tanaman padi. Beras merukan makan pokok masyarakat Indonesia dan merupakan sumber energi yang sangat dibutuhkan oleh masyarakat Beras yang sudahterakumulasi kromium dapat menjadi risiko Kesehatan manusia. Tujuan dari penelitian ini dapat mengetahui konsentrasi kromium heksavalen yang terdapat pada beras, mengetahui laju asupan berdasarkan kelompok umur,mengetahui efek kromium heksavalen terhadap Analisis risiko Kesehatan. Lokasi penelitian ini dilaksanakan di desa jambidan pedukuhan Combongan, Pamotan, Ponegaran, Kretek kecamatan Banguntapan. Uji analisis kromium heksavalen pada 15 gram sampel beras menggunakan Spektrofotometer HACH DR 2700. Kromium heksavalen pada sampel beras 0 – 0.901 mg/kg dengan nilai rerata 0.266 mg/kg. Laju asupan kromium harian masyarakat berkisar antara 0 – 4250 μg/hari dengan rerata 919 μg/hari melebihi standar baku mutu yang telah ditetapkan WHO sebesar 0.023 μg/hari. Analisa risiko Kesehatan tingkat resikonya sudah tidak aman dikarenakan nilai RQ > 1 atau rerata Intake Non Karsinogen setiap Pedukuhan(1.56 mg/kg.hari). Intake karsinogenik pada setiap Pedukuhan Tingkat risikonya tidak aman dikarenakan Rerata intake (6.67E-01) di kali SF (0.5) nilai ERC > E-4 melewati batas aman yang sudah di tetapkan WHO (E-4). Faktor konsentrasi kromium heksavalen signifikan dengan umur berat badan dan lama tinggal responden.
Kata Kunci: Kromium Heksavalen, Beras, Analisa Resiko Kesehatan
Pengetahuan Lokal Suku Anak Dalam Mengenai Pemanfaatan Tumbuhan yang Berkhasiat Obat di Kawasan Nasional Bukit Dua Belas Sarolangun : Local knowledge of suku anak dalam about the utilization of medical plants in Bukit Dua Belas Sarolangun Nasional Park Area
No full textOrang Rimba (Suku Anak Dalam) has an excellent knowledge of medicine. They are able to distinguish between poisonous plants including processing them. The purpose of this research is to find out the Species of medicinal plants, part of the plants used and how to process the plants by the Anak Dalam Tribe. This research is a qualitative descriptive research. Data is taken through semi-structured interviews, participatory observations and documentation. From the results of research obtained 48 Species of medicinal plants. Of the 48 Species, 12 Species are utilized for fever medicine, 11 Species for skin medicine, 8 Species for stomach pain / digestive problems, 8 Species for birthing drugs, 1 Species of toothache medicine, 1 Species of canker sores, 1 Species of appetite enhancer drugs, 2 Species of cough medicine, 1 Species of flu medicine and 1 Species of malaria medicine. Parts of plants that are often used for medicine are leaves. Processing the plant into an average medicine by boiling and drinking boiled water plants.
Keywords: Suku Anak Dalam, Local knowledge, medical plants
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Abstrak
Orang Rimba (Suku Anak Dalam) memiliki pengetahuan obat-obatan yang sangat baik. Mereka mampu membedakan tumbuhan beracun termasuk mengolahnya. Tujuan penelitian ini yaitu untuk mengetahui jenis tumbuhan obat, bagian dari tumbuhan yang dimanfaatkan dan cara pengolahanny tumbuhan tersebut oleh Suku Anak Dalam. Penelitian ini merupakan penelitian deskriptif kualitatif. Data diambil melalui wawancara semi terstruktur, observasi partisipatif dan dokumentasi. Dari hasil peneitian didapatkan 48 jenis tanaman obat. Dari 48 jenis tersebut,12 jenis dimanfaatkan untuk obat demam, 11 jenis untuk obat kulit, 8 jenis untuk obat sakit perut/masalah pencernaan, 8 jenis untuk obat proses melahirkan, 1 jenis obat sakit gigi, 1 jenis obat sariawan, 1 jenis obat penambah nafsu makan, 2 jenis obat batuk, 1 jenis obat flu dan 1 jenis obat malaria. Bagian tanaman yang sering dimanfaatkan untuk obat yaitu daun. Pengolahan tanaman tersebut menjadi obat rata-rata dengan cara direbus dan diminum air rebusan tanaman tersebut.
Kata Kunci: Suku Anak Dalam, Pengetahuan lokal, Tumbuhan oba
Kualitas Dan Daya Simpan Buah Naga (hylocereus costaricencis) dengan Edible Coating Pektin Kulit Buah Kakao dan Penambahan Ekstrak Jahe (Zingiber officinale): Quality and Shelf Life of Dragon Fruit with Edible Coating of Cocoa Pod Peel Pectin and Addition of Ginger Extract
Full text linkHorticultural commodities, especially fruits, have bright prospects in the agricultural sector. One of the fruits that has bright prospects and is ogled by a number of plantations and is available in fruit shops, markets, and supermarkets is dragon fruit. Efforts that can be made to maintain the quality and shelf life of dragon fruit are by coating methods, namely edible coating of pectin of cocoa pods and the addition of ginger extract. The purpose of this study was to determine the quality and shelf life of dragon fruit with edible coating of pectin of cocoa fruit peel and addition of ginger extract and to obtain the best concentration of addition of ginger extract that can maintain quality and extend shelf life of dragon fruit. This research was carried out in March-April 2022 using a Completely Randomized Design (CRD) consisting of 4 levels, namely 2 grams of cocoa peel pectin with 0% ginger extract, 2 grams of cocoa husk pectin with 9% ginger extract, 2 grams of cocoa husk pectin. with 27% ginger extract, and 2 grams of cocoa rind pectin with 54% ginger extract. The best result was the combination of 2 gram cocoa rind pectin with 54% ginger extract with a fruit weight loss value of 6.728%, fruit texture neutral, fruit color neutral with storage for 14 days.
Keywods: dragon fruit, edible coating, ginger extract.
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Abstrak
Komoditas hortikultura, khususnya buah-buahan memiliki prospek cerah dalam sektor pertanian. Salah satu buah yang memiliki prospek yang cerah dan dilirik oleh sejumlah perkebunan serta telah tersedia ditoko buah, pasar, dan swalayan yaitu buah naga. usaha yang dapat dilakukan untuk menjaga kualitas dan umur simpan pada buah naga adalah dengan metode pelapisan yaitu edible coating dari pektin kulit buah kakao dan penambahan ekstrak jahe. Tujuan penelitian ini untuk mengetahui kualitas dan daya simpan pada buah naga dengan edible coating dari pektin kulit buah kakao dan penambahan ekstrak jahe dan Mendapatkan konsentrasi penambahan ekstrak jahe terbaik yang dapat mempertahankan kualitas dan memperpanjang daya simpan pada buah naga. Penelitian ini dilaksanakan pada bulan maret-april 2022 dengan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 taraf yaitu pektin kulit kakao 2 gram dengan ekstrak jahe 0%, pektin kulit kakao 2 gram dengan ekstrak jahe 9%, pektin kulit kakao 2 gram dengan ekstrak jahe 27%, dan pektin kulit kakao 2 gram dengan ekstrak jahe 54%. Hasil penelitian terbaik adalah pada kombinasi pektin kulit kakao 2 gram dengan ekstrak jahe 54% dengan nilai susut bobot buah 6,728%, tekstur buah netral, warna buah netral dengan penyimpanan selama 14 hari.
Kata Kunci: buah naga, edible coating, ekstrak jahe
Komposisi Hasil Tangkapan Jaring Insang Millenium 3 Inchi dan 4 Inchi di Perairan Perikanan Kuala Tungkal Kabupaten Tanjung Jabung Barat: Catch Composition of 3-Inch And 4-Inch Millennium Gill Nets In The Fishery Waters of Kuala Tungkal, West Tanjung Jabung Regency
Full text linkThis study aims to determine the composition of catches using 3-inch and 4-inch Millennium gill net fishing gear at Kuala Tungkal Beach Fishing Port, Tanjung Jabung Barat Regency. This research was conducted in June - July 2021. The method used is the survey method. The materials in this study are 3-inch and 4-inch Millennium gill net fishing gear, fish catches and scales. by direct observation and conducting interviews with fishermen using 3-inch and 4-inch millennium gill nets. Data collection was carried out for 16 times (days) of fishing. The variables observed in this study were the main catches in the form of composition, number (tails), weight (kg), number per-type, and weight per-type of catches and water conditions (temperature and depth) data analysis was carried out using the t-test. The results showed that the catch of 3-inch Millennium gill nets was higher than 4 inches with a significant effect (P>0.05) on the catch in Kuala Tungkal Waters, West Tanjung Jabung Regency. Composition of 3-inch and 4-inch gill nets (number and weight) the number of catches of 3-inch Millennium gill nets is gulamah fish weighing 1520 kg with a percentage of 21.59% and weighing 317 kg with a percentage of 22.59%. for 4-inch mesh size the most catch of mackerel weighing 1015 kg with a percentage of 21.60%, weighing 201 kg of mackerel with a percentage of 20.62%. on the catch of 3-inch and 4-inch millennium gill nets. Based on the results of the study it can be concluded that there are differences in the catch of 3-inch gill nets higher than 4-inch gill nets both in number and weight of catches.
Keywods: Millennium gillnet gear, Composition, Catch Size, Catch Weight
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Abstrak
Penelitian ini bertujuan untuk mengetahui komposisi hasil tangkapan dengan menggunakan alat tangkap jaring insang Millennium 3 inchi dan 4 inchi di Pelabuhan Perikanan Pantai Kuala Tungkal Kabupaten Tanjung Jabung Barat. Penelitian ini dilaksanakan pada bulan Juni – Juli 2021. Metode yang digunakan adalah metode survey. Materi dalam penelitian ini adalah alat tangkap Jaring insang Millennium 3 inchi dan 4 inchi, ikan hasil tangkapan dan timbangan. dengan pengamatan langsung dan melakukan wawancara kepada nelayan pengguna jaring insang millennium 3 inchi dan 4 inchi. Pengambilan data dilakukan selama 16 kali (hari) penangkapan. Peubah yang diamati dalam penelitian ini hasil tangkapan utama berupa komposisi, jumlah (ekor), berat (kg), jumlah per-jenis, dan berat per-jenis hasil tangkapan serta kondisi perairan ( suhu dan kedalaman) analisis data dilakukan menggunakan uji-t. Hasil penelitian menunjukan bahwa hasil tangkapan jaring insang Millennium 3 inchi lebih tinggi dibanding 4 inchi berpengaruh nyata (P>0,05) terhadap hasil tangakapan di Perairan Kuala Tungkal Kabupaten Tanjung Jabung Barat. Komposisi jaring insang 3 inchi dan 4 inchi (jumlah dan berat) jumlah tangkapan jaring insang Millennium 3 inchi adalah ikan gulamah seberat 1520 kg dengan presentase 21,59% dan berat 317 kg dengan presentase 22,59%. untuk ukuran mata jaring 4 inchi tangkapan terbanyak ikan tenggiri seberat 1015 kg dengan persentase 21,60%, berat ikan tenggiri 201 kg dengan persentase 20.62%. terhadap hasil tangkapan jaring insang millennium 3 inchi dan 4 inchi. Bedasarkan hasil penelitian dapat disimpulkan bahwa adanya perbedaan hasil tangkapan jaring insang 3 inchi lebih tinggi dibanding dengan jaring insang 4 inchi baik dari jumlah maupun berat tangkapan.
Kata Kunci: Alat tangkap Jaring insang millennium, Komposisi, jumlah Tangkapan, Berat Tangkapan
Hubungan Tingkat Konsentrasi Pencemar Kromium Dalam Air dan Sedimen dengan Sruktur Komunitas Moluska Sungai Opak Bagian Hilir Kabupaten Bantul: The Relation of Chromium Pollutant Concentration Level in Water and Sediment toward Mollusc Community Structure in the Downstream of Opak River Bantul Regency
Full text linkThe declining water quality of the Opak River, due to the heavy metal chromium, may cause disturbances to the life of aquatic biota such as mollusks. The aim of this study was to determine the relation between the concentration of chromium in the air and sediment on the mollusk community structure in the downstream of Opak River. This research was conducted in April – July 2022, in the downstream of Opak River consisting of five sampling stations (Kalasan, Piyungan, Pleret, Imogiri, Pundong) with three replications based on sampling time. The samples analyzed included samples of river water, sediment and molluscs. Analysis of the total chromium content in the sample was carried out by heating preparation at 180oC for 6 hours, then extracted by destruction method using aqua regia solution. The concentration of chromium in the sample was determined using the AAS (Atomic Absorption Spectrophotometer) method. Chromium contaminants were found in all types of samples. The highest concentration was in sediment (1,186 mg/L), followed by molluscs (0.682 mg/L) and the lowest was in water (0.124 mg/L). The types of mollusks in the downstream of Opak River are dominated by two mollusc species from the bivalves class and three mollusc species from the gastropod class with a total of 672 individuals. Corbicula javanica species became the most common mollusk with a total of 264 individuals and became the mollusk species with the highest chromium concentration of 0.914 mg/L. There was a significant relationship between the concentration of chromium in the air (p = 0.041<0.05), and sediment (p = 0.026<0.05) with the level of chromium accumulation in molluscs.
Keywods: Chromium, Mollusk, Accumulation, Opak River.
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Abstrak
Menurunnya kualitas air Sungai Opak, akibat pencemaran logam berat kromium berpotensi menimbulkan gangguan kehidupan biota perairan seperti moluska. Penelitian bertujuan untuk mengetahui hubungan antara tingkat konsentrasi pencemar kromium dalam air dan sedimen terhadap struktur komunitas moluska di Sungai Opak bagian hilir. Penelitian ini dilakukan pada April – Juli 2022, di Sungai Opak bagian hilir yang terdiri dari lima stasiun pengambilan sampel (Kalasan, Piyungan, Pleret, Imogiri, Pundong) dengan tiga replikasi berdasar waktu pengambilan sampel. Sampel yang dianalisa meliputi sampel air sungai, sedimen dan moluska. Analisis kadar kromium total pada sampel dilakukan dengan preparasi melalui pemanasan pada suhu 180oC selama 6 jam, kemudian diekstraksi dengan metode destruksi menggunakan larutan aqua regia. Konsentrasi kromium pada sampel ditentukan dengan menggunakan metode AAS (Atomic Absobtion Spectrophotometer). Pencemar kromium ditemukan pada semua jenis sampel. Konsentrasi tertinggi ditemukan pada sedimen (1,186 mg/L), kemudian diikuti moluska (0,682 mg/L) dan terendah pada air (0,124 mg/L). Jenis moluska sungai Opak bagian hilir didominasi oleh dua spesies moluska dari kelas bivalvia dan tiga spesies moluska dari kelas gastropoda dengan jumlah total sebanyak 672 individu. Spesies Corbicula javanica menjadi moluska yang paling banyak ditemukan dengan jumlah total 264 individu dan menjadi spesies moluska dengan rerata konsentrasi kromium paling tinggi yaitu 0,914 mg/L. Terdapat hubungan signifikan antara konsentrasi kromium pada air (p = 0,041<0,05), dan sedimen (p = 0,026<0,05) dengan tingkat akumulasi kromium pada moluska.
Kata Kunci: Kromium, Moluska, Akumulasi, Sungai Opa
Karakter Morfologi Bunga Dan Buah Putat (Barringtonia acutangula (L.) Gaertn.): Morphological Characteristics of Putat Flowers and Fruit (Barringtonia acutangula (L.) Gaertn.)
Full text linkThis research delves into the morphological characteristics of Putat (Barringtonia acutangula (L.) Gaertn.) in its natural habitat at Tangkas Lake, Muaro Jambi Regency, Jambi Province. In a landscape where water levels ebb and flow, Putat predominantly swathes the lake, enriching its visual allure and nurturing the area's development into a tourist attraction. The captivating aesthetics of Putat, marked by its distinct and briefly blossoming flowers, enhance the lake's appeal, drawing community interest and tourism. The study is meticulous, utilizing purposive sampling at two strategic locations and employing descriptive analysis supported by visual representations and tables. The findings unveil detailed insights into the plant’s flowers, fruits, and seeds. Putat’s flowers are found to be vibrant, unlimited compound entities, while its fruit evolves from a verdant to a purplish hue upon maturity, encompassing a singular, resilient seed. This in-depth exploration contributes valuable knowledge to the limited existing information, facilitating a deeper understanding of Putat’s unique ecological presence and biodiversity at Tangkas Lake.
Keywords: Barringtonia acutangula, Putat, Danau Tangkas, Flower, Morphological character
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Abstrak
Penelitian ini mengkaji Putat (Barringtonia acutangula (L.) Gaertn.) di habotat alaminya di Danau Tangkas, Kabupaten Muaro Jambi, Provinsi Jambi. Putat yang tumbuh alami di danau memperkaya ekosistem lokal dengan keindahan flora uniknya, dan meningkatkan potensi danau sebagai destinasi wisata. Kajian ini berfokus pada karakterisasi morfologi bunga, buah, dan biji putat, untuk mengisi kekurangan informasi mengenai proses reproduksi tumbuhan ini. Data dikumpulkan menggunakan metode sampling purposif dilanjutkan dengan analisis secara deskriptif. Hasil penelitian menunjukkan bunga putat sebagai bunga majemuk tak terbatas dengan corolla merah yang menarik, dan struktur yang kompleks. Buah putat, berbentuk lonjong dan berkembang dari hijau menjadi hijau keunguan saat matang, serta mengandung biji tunggal yang kokoh. Temuan ini memberikan kontribusi penting dalam pemahaman lebih lanjut mengenai biodiversitas dan adaptasi ekologi Putat di habitatnya.
Kata kunci: Barringtonia acutangula, Putat, Danau Tangkas, Bunga, Morfologi
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Aktivitas Enzim Kitinase Actinobacteria Asal Perkebunan Kelapa Sawit PTPN VI Muaro Jambi dalam Menghambat Ganoderma boninense: Activity of The Chitinase Enzyme Actinobacteria from Palm Oil Plantation PTPN VI Muaro Jambi in Inhibiting Ganoderma boninense
Full text linkActinobacteria are gram-positive bacteria that can produce primary metabolites in the form of enzymes, one of which is the chitinase enzyme. Chitinase is an enzyme that has the ability to degrade chitin which is the main structure in the cell wall of plant pathogenic fungi. One of the Actinobacteria that have the ability to produce enzymes can be obtained from the soil of the PTPN VI Muaro Jambi oil palm plantation which can be used as a biocontrol agent for plant pathogenic fungi, namely Ganoderma boninense. The purpose of this study was to determine the magnitude of the activity of the chitinase enzyme Actinobacteria and to determine the magnitude of the inhibitory activity of the enzyme chitinase Actinobacteria against Ganoderma boninense. This research was conducted with a quantitative descriptive method. The results showed that one isolate of Actinobacteria (SP1) had enzyme activity (Crude Extract Enzyme (EEK) and concentrated chitinase enzyme). The activity of the chitinase enzyme was higher at 0.0296 U/mL compared to the EEK activity of 0.0288 U/mL. The inhibitory power using the concentrated chitinase enzyme also had a higher value, namely 57.3% compared to the inhibitory power using EEK, which was 56.6%.
Keywords: Actinobacteria, Perkebunan Kelapa Sawit PTPN VI Muaro Jambi, Enzim Kitinase, Ganoderma boninense
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Abstrak
Actinobacteria merupakan bakteri gram positif yang dapat menghasilkan senyawa metabolit primer berupa enzim, salah satunya yaitu enzim kitinase. Kitinase merupakan enzim yang memiliki kemampuan dalam mendegradasi kitin yag menjadi struktur utama pada dinding sel jamur patogen tanaman. Actinobacteria yang memiliki kemampuan dalam menghasilkan enzim salah satunya dapat diperoleh dari tanah perkebunan kelapa sawit PTPN VI Muaro Jambi yang dapat dijadikan sebagai agen biokontrol jamur patogen tanaman, yaitu Ganoderma boninense. Tujuan penelitian ini untuk mengetahui besarnya aktivitas enzim kitinase Actinobacteria dan mengetahui besarnya aktivitas penghambatan enzim kitinase Actinobacteria terhadap Ganoderma boninense. Penelitian ini dilakukan dengan metode deskriptif kuantitatif. Hasil penelitian diperoleh satu isolat Actinobacteria (SP1) yang memiliki aktivitas enzim (Enzim Ekstrak Kasar (EEK) dan enzim kitinase hasil pemekatan). Aktivitas enzim kitinase hasil pemekatan lebih tinggi yaitu 0,0296 U/mL dibandingkan dengan aktivitas EEK yaitu 0,0288 U/mL. Daya hambat menggunakan enzim kitinase hasil pemekatan juga memiliki nilai lebih tinggi yaitu 57,3% dibandingkan dengan daya hambat menggunakan EEK yaitu 56,6%.
Kata kunci: Actinobacteria, PTPN VI Muaro Jambi Oil Plantation, Chitinase Enzyme, Ganoderma boninense