JURNAL AGROTEKNOLOGI
Not a member yet
63896 research outputs found
Sort by
Karakteristik Pewarna Alami Cair Terbuat dari Variasi Rasio Tepung Labu Kuning (Cucurbita moschata): Pelarut dan Lama Waktu Ekstraksi: Characteristic of Liquid Natural Colorant Made from Variations in The Ratio of Yellow Pumpkin Flour: Solvent and Extraction Time
No full textLiquid natural colorant is an alternative product which was produced from pumpkin flesh. The pumpkin contains high carotenoid compounds which rich of antioxidants. This research was aimed to determine the effect of solvent concentration and extraction time on the characteristics of liquid natural colorant from pumpkin. This study used a completely randomized design with two factors, namely the ratio of yellow pumpkin flour: solvent (1:6, 1:8, and 1:10 (w/v)) and extraction time (1, 2, and 3 days). Each treatment was repeated three times. Based on the results of the research, the treatment with a ratio of yellow pumpkin flour: solvent (w/v) 1:10 and the extraction time is 3 days produced the best liquid natural colorant, with the characteristics: brightness level (lightness) was 85.59 of lightness, 85.17% of antioxidant activity, 3.94 mg GAE/mL of total polyphenol, 0.63 mg/100 g of carotenoid content, the color stability test based on temperature storage (room temperature and cold temperature), respectively 2.96 and 3.42, and color stability test based on light intensity (lamp light and covered with aluminum foil) 2.79 and 2.84, respectively. According to these findings, the maceration method used on this research could be applied on production of natural colorant made from yellow pumpkin.
Keywords: extraction time, liquid natural colorant, solvent, yellow pumpki
Kualitas Es Krim dengan Kombinasi Penambahan Ekstrak Tulang Ikan Patin Jambal (Pangasius djambal) dan Ekstrak Kacang Gude (Cajanus cajan): Quality of Ice Cream with a Combination of Jambal Catfish (Pangasius djambal) Bone Extract and Pigeon Pea Bean (Cajanus cajan) Extract
No full textIce cream is a frozen food processed using a stabilizer, fat milk, and protein. It has a soft texture that can survive at room temperature. The bones of jambal catfish (Pangasius djambal) have collagen fibers, which are used to make gelatin as a stabilizer and emulsifier; gude or pigeon pea beans (Cajanus cajan) contain high protein that can be used to improve the quality of protein in ice cream. This research was conducted to determine the quality of ice cream with jambal catfish bone extract and pigeon pea bean extract added, which was seen from a chemical, physical, and microbiological point of view, as well as the acceptability of ice cream for consumption, besides this research also determine the right combination of using jambal catfish bone extract as a stabilizer to replace carboxy methyl cellulose (CMC) and pigeon pea bean extract in improving the quality of ice cream. This research was conducted using a completely randomized design (CRD) with 4 combination treatments of adding jambal catfish bone extract and pigeon pea bean extract i.e., 0:0% (control/K), 0.25:50% (A); 0.5:50% (B) and 0.75:75% (C). The results showed that the best quality of ice cream by the addition of 0.5% jambal catfish bone and 50% pigeon pea bean extract (B) with the protein content of 5.95%, lipid content of 17.48%, total solid of 22.39%, overrun value of 68.00%, melting rate value of 16.95%, total microbes (total plate count) of 2.46 log10 colony/gram, and negative of Salmonella sp. This research is beneficial in replacing synthetic emulsifiers and stabilizers with natural ingredients and increasing the use of plant-based ingredients to increase ice cream protein.
Keywords: collagen bone, emulsifier, ice cream, pigeon pea bean extract, stabilize
Penentuan Prioritas Produk Berbahan Limbah Kopi Menggunakan Metode AHP di Sub DAS Cikamiri, Garut, Jawa Barat: Prioritization of Coffee Waste-Based Products Using AHP Method in Cikamiri Sub Watershed, Garut, West Java
No full textThe suboptimal management of coffee waste affected a significant challenge because the coffee waste is often discarded without being utilized optimally. As a long-term impact, this can cause environmental pollution and loss of economic opportunities from coffee waste. A similar case occurred in the Cikamiri Sub Watershed, Garut, West Java. So it needed to be carried out by applying coffee waste to potential products such as cascara tea, liquid organic fertilizer, and bio-briquettes, but the product priority is not yet known. So that, this study aims to determine the priority for processing coffee waste into high-value products, such as cascara tea, liquid organic fertilizer (POC), and bio-briquettes using the Analytic Hierarchy Process (AHP) method in the Sub DAS Cikamiri, Garut, West Java. AHP was chosen for its ability to handle multi-criteria decision-making in a structured manner. The criteria used in this study include labor availability, investment cost, high market value, and material availability. The result showed that cascara tea (prevalence value of 68.6%) was the highest-priority product, followed by liquid organic fertilizer (prevalence value of 20.7%) and bio-briquettes (prevalence value of 10.6%). This study indicated that cascara tea had high market potential, while liquid organic fertilizer and bio-briquettes can be developed by considering environmental impact and sustainability. This research provides strategic recommendations to optimize coffee waste utilization, focusing primarily on cascara tea production to enhance economic value and positive environmental impacts.
Keywords: analytical hierarchy process, bio-briquettes, cascara, coffee waste, liquid organic fertilize
Karakteristik Kimia Kulit Lumpia Basah dengan Fortifikasi Tepung Tulang Ikan Patin (Pangasius pangasius): Chemical Characteristic of Wet Spring Roll Wrapper with Fortification of Patin Fish (Pangasiun pangasius) Bone Flour
Full text linkWaste from patin fish (Pangasius pangasius) consumption is skin and fish bone. Its waste generally used as a raw material for food and industrial products because of fat, gelatin, collagen, and calcium compounds. Based on its calcium compound, another food application is the fortification of patin fish bone on wet spring roll wrapper. It is important to increase the consumption rate of calcium nutrition. Therefore, this research aimed to improve the proximate composition (especially calcium) of wet spring roll wrapper with 6% catfish bone flour fortification. The method used in this research was experimental with two treatments, i.e. the addition of 6% patin fish bone flour (A1) and 0% patin fish bone flour (A0) as a control. The parameters observed were moisture, ash, fat, protein, carbohydrate, and calcium content. The test procedure for each parameter observed is based on SNI 01-2354:2006. Sample testing was carried out in duplicate. The proximate composition of wet spring roll wrapper fortified with 6% patin fish bone flour consists of moisture, ash, fat, protein, carbohydrate, and calcium content respectively 60.21%, 2.61%, 0,71%, 3.96%, 32.51%, and 19.90 mg/100 g. Wet spring roll wrapper that was fortified with 6% patin fish bone flour (A1) had higher calcium content (19.90 mg/100 g) compared to wet spring roll wrapper with no fortification (control/A0) of the patin fish bone flour (8.22 mg/100 g). The moisture content of this calcium-rich wet spring roll wrapper is included in the Indonesian National Quality Standard (SNI) number 2987-2015 for wet noodles. This wet spring roll wrapper is one of diversified product using fishbone fortification to increase its calcium content.
Keywords: fish bone, calsium, consumption, protein, wast
Analisis Keberlanjutan Agroindustri Ikan Lemuru (Sardinella sp.) (Studi Kasus di Kecamatan Puger, Kabupaten Jember): Sustainability Analysis of Lemuru Fish (Sardinella sp.) Agro-Industry (Case Study in Puger Sub-District, Jember Regency)
Full text linkThe capture fisheries agroindustry faces serious business sustainability threats in the future, both from economic, resource, environmental, technological and social aspects. Lemuru fish (Sardinella sp.) based agroindustry in Puger District, Jember Regency also faces a similar threat. This research aims to analyze the sustainability of the lemuru fish processing business and provide recommendations for improving its sustainability. The analytical method used is Rapfish (Rapid Appraisal for Fisheries), while the recommendations are prepared descriptively. The results of the analysis show that the Lemuru agro-industry sustainability index is in the less sustainable category with a score of 42.61. The environmental dimension has the lowest index value in the bad category, followed by the social and technological dimensions which are categorized as less sustainable, while the resource and economic dimensions are categorized as quite sustainable. Efforts to improve the environmental dimension can be made by organizing mentoring programs to develop environmental management efforts. For the social and technological dimensions, technological guidance, management and horizontal diversification of processed lemuru waste can be carried out into various innovative products.
Keywords: capture fisheries, lemuru, sustainability analysis, Rapfis
Penambahan Serbuk Kelopak Bunga Rosela (Hibiscus sabdariffa L.) untuk Meningkatkan Aktivitas Antioksidan pada Tempe Kedelai
Full text linkTempeh is a traditional food product made from soybeans through a fermentation process by tempeh mold (Rhizopus sp.). This food product besides having high nutritional value also contains antioxidant compounds which are very good for consumption but with a relatively low IC50 value. This study used rosella flower calyx (Hibiscus sabdariffa L.) which are believed to have a high enough antioxidant content so they are effective in increasing the antioxidant content in tempeh. Furthermore, the addition of rosella calyx powder will give tempeh an attractive taste, aroma, and color. The objective of this research was to determine the effect of rosella calyx powder addition on tempeh making with various concentrations, i.e. 0% (P0), 0.5% (P2), 1% (P3), 1.5% (P4), and 2% (P5). The antioxidant activity using the DPPH method, the organoleptic properties based on the preference level (hedonic) using a questionnaire, and the water content of tempeh based on the principle of gravimetry method were also tested. The result showed that the IC50 value of 2% concentration of rosella calyx powder addition (P5) was 1596.9 ppm. IC50 of the P5 treatment was the highest antioxidant activity power category compared the other treatment, even though it was still relatively low in antioxidant activity. Then on the organoleptic test, the results showed that the addition of rosella flower calyx powder was able to affect the taste, color, and aroma of tempeh and has no effect on the water content of tempeh.
Keywords: antioxidant, organoleptic, rosella, tempeh, water conten
Formula dan Umur Simpan Minuman Serbuk Berbasis Rosela dengan Penyalut yang Berbeda
Full text linkResearch on functional foods has been conducted by many researchers for healthy benefit (as an anti-obesity, anti-inflammatory, herbal drink, etc). One interesting research is the development of roselle (Hibiscus sadbariffa Linn) based functional foods in the form of powder drinks and its shelf life during storage. So that, this study aims to determine the shelf life of powder drinks made from roselle extract, lemon extract, mangosteen peel extract, and EGCG (epigallocatechin galat). In this study, the application of roselle extract was carried out with three different types of coating materials. Determination of shelf life was tested for moisture content, anthocyanin content, and vitamin C content to obtain roselle extract formulations with selected coating ingredients. The data obtained were analyzed using oneway ANOVA. The powder drink formulation was stored at 3 different temperatures of 25, 35, and 45oC for 16 days. Tests were carried out on days 0, 4, 8, and 16 days. The shelf life calculation is calculated based on the Accelerated Shelf Life Test (ASLT) Arrhenius model. The results showed that the type of encapsulated coating had a significant effect on the characteristics of water content, anthocyanin levels, and vitamin C levels at the level of 95%. The F3 sample (roselle extract, maltodextrin, pectin, and whey) was the most stable sample and had the longest shelf life in roselle powder beverage at 512 days at a storage temperature of 25oC.
Keywords: anthocyanin, coating material, roselle extract, shelf life, vitamin
Potensi Antioksidan Buah Naga Merah (Hylocereus polyrhizus) Kering dengan Pre-Treatment
Full text linkRed dragon fruit has the potential as a functional food because it contains bioactive compounds that provide health benefits. Dried fruit is a simple processing fruit method and does not change the shape of the fresh fruit much, but during the drying process, the bioactive compounds are easily damaged by heat. It is necessary to give pre-treatment before drying. The study aimed to determine the antioxidant capacity, total phenolic, total flavonoid, betacyanin levels, and sensory preference of dried red dragon fruit with pre-treatments. The six levels of pre-treatments were without pretreatment/control (K0), steam blanching (70ºC) for 10 minutes (K1), soaking in cold citric acid (3%) for 10 minutes (K2), soaking in cold citric acid (3%) for 3 minutes, then steam blanching at 70ºC for 7 minutes (K3), soaking in cold salt (5%) for 10 minutes (K4), and soaking in cold salt (5%) for 3 minutes, steam blanching at 70ºC for 7 minutes (K5), then dried it at 50ºC for 18 hours. The results showed that the control (K0) had the highest total phenolic content (20.10 mg GAE/g), total flavonoid content (5.92 mg QE/g), betacyanin content (1.57 mg/g), antioxidant capacity (1.72 mg GAEAC/g), and organoleptic preference like of color (5.65), rather like of odor (5.00), like of texture (5.69), like of taste (5.92), and like of overall acceptance (5.92). Based on sensory (organoleptic) acceptance, the steam blanching (70ºC, 10 minutes) (K1) of dried red dragon fruit had the highest preference: like of color (6.08), like of texture (5.85), like of taste (6.23), and like of overall acceptance (6.23), but rather like of odor (5.31). Meanwhile, KI had 16.71 mg GAE/g of total phenolics, 4.98 mg QE/g of total flavonoids, 0.87 mg/g of betacyanin levels, and 1.48 mg GAEAC/g of antioxidant capacity. Dried red dragon fruit (especially with steam blanching) has the potential as a functional food ingredient because the pre-treatment maintains its bioactive content during drying.
Keywords: dried red dragon fruit, functional food ingredients, pre-treatmen