Jurnal Mangifera Edu
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139 research outputs found
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Molecular Interaction of Chili Compounds (Capsicum annum L) as a COX-2 Inhibitor
Full text linkCurly red chili (Capsicum annum L.) is a vegetable that has health benefits. Besides being used as an addictive substance in traditional medicine, Capsicum annum L. is also used for cough treatment, antiseptic, anti-irritant, anti-inflammatory. This research study aims to analyze the physico-chemical and its molecular interactions with COX-2. Capsaicin (CID: 1548943), dihydrocapsaicin (CID: 107982) and homocapsaicin (CID: 6442566) compounds were downloaded from pubchem. While the COX protein (ID: 6cox) from the Protein Data Bank. Molecular interaction and analized by HEX. 8.0.0 and Discovery Studio. The three compounds contained in curly red chilies have unique physico-chemical characteristics. The results of the interaction show that the curly mera chili has a physiological function by inhibiting the performance of COX-
Test of Phytocemical Levels of Bidara (Ziziphus spina-christi L.) Potential as Medicinal Plants
No full textArabic bidara or Ziziphus spina-christi L. is a plant that has potential in the traditiobal medicine industry. Based on research reports on bidara leves (Ziziphus spina-christi L.) can be useful as antioxidants, anti-inflammatory, antimicrobial, antifungal and prevent tumors. Bidara leaves (Ziziphus spina-christi L.) contain secondary metabolites that have many health benefits, secondary metabolites include flavonoids, alkaloid, saponins, steroids and tannins. The pupose of this study: To determine the levels of phytochemicals in the leavels of the bidara Arabic plants (Ziziphus spina-christi L.) as a medicinal plant. According to Mulyatiningsih (2011) this research uses a quantitative descriptive method. Based on the results of the study, the levels of the bidara leaf (Ziziphus spina-christi L.) produced varying levels of secondary metabolites, namely alkaloid, flavonoids, saponins, steroids and tannins. The average levels of secondary metabolites, including flavonoids, produced levels of 3.030%, alkaloids produced levels of 23.537% saponins produced levels of 5.5307, tannis produced levels of 0.0933% and steroid produced levels of 3.494%. of the five compounds, the highest compounds that have the potential as medicinal plants are alkaloid compounds that produce levels as much as 23.537%, and the lowest compounds, namely tannins, produce levels of 0.0933%. The hope in the future from the compounds that have been studied is that they are used as herbal medicines by the community and as references for for other researchers
Development of Inquiry Based-Metacognitif Skills on Water Pollution Materials for High School
No full textMetacognitive skills are essential in 21st-century education because they can hone students' reasoning. Metacognitive skills tend not to be trained much in the learning process and are not used to being assessed so that there is no instrument for assessing students' metacognitive skills. The research aims to develop a product of inquiry-based metacognitive skills on water pollution material, as well as to determine the feasibility of these instruments. This research method uses development research (R&D). The research samples were three lecturers as metacognitive skills experts, evaluation experts, and environmental experts, as well as two biology teachers in high school. The sampling technique was using a purposive sampling technique. Data collection techniques using validation sheets and interview sheets and validation sheets. Instrument products in the form of test sheets and observation sheets. The validation results show that the instrument product is at a very good level. It indicates that the inquiry-based metacognitive skills assessment instrument on water pollution material is suitable for use in schools
Techniques of Learning Planning Patterns Character Digitalization_Literacy 4.0
No full textABSTRACT
Careful learning planning is important because if it is not prepared it will make the system less controlled. Learning planning must be adjusted to the quality and vision of the university and the demands for accreditation of study programs 4.0. Therefore, the purpose of this research is to create a learning planning design pattern technique with the character of digitization, literacy 4.0. The research method is (R&D). This research is a development research (R&D) with a 2-D model, namely Define and Design. Define stage, which is the initial research stage and information collection is carried out by investigating the desired needs in the field. Design stage planning stage (connecting all literature and component formats for presenting learning planning theoretically through literature review analysis. The conclusion is that research can produce learning planning products with digitalization, literacy and green campus paradigms 4.0 through analysis of literature studies from the desired aspects
Termiticidal Activity of Methanol Extract of Pegagan (Centella asiatica L. Urban) Toward Coptotermes curvignathus Holmgren
Full text linkTermiticide activity of methanol extract of Centella asiatica L. Urban against Coptotermes curvignathus Holmgren was investigated using the no choice test. The chemical components of methanol extract of C. asiatica were identified by GC-MS. The antitermite activity showed that the percentage of termite mortality increased when the concentrations of extract increased. The concentrations of 25% indicated the highest termite mortality which reached 100% on the sixth day. Profiling GC-MS methanol extract of C. asiatica revealed 85 chemical components. Based on MS spectral data, 56 chemical components were identified which were grouped into fatty acids (27.09%), esters (23.73%), hydrocarbons (16.56%), ethers (8.28%), sesquiterpenes (1.61 %), alcohol (1.55 %), aldehydes (3.50%), monoterpenes (1.08%), diterpenes (0.67%), steroids (0.43%), and ketones (0.31 %). Among these, the presence of palmitic acid, patchouli alcohol, and β-caryophyllene may be responsible for its termiticide activity. Other compounds such as triterpenoids, saponins, flavonoids, tannins, steroids, and glycosides that were reported previously not detected by GC-MS in this study, possibly contributing to its activity
Analysis of Bacteria Escherichia coli, Salmonella sp and Shigella sp on Black Sticky Rice Ice in Malang
Full text linkEs tape ketan hitam is a traditional drink that is in great demand by the public and has the potential as a source of disease transmission is in the process of processing not using proper hygiene sanitation. The purpose of this research is to determine the content of Escherichia coli, Salmonella sp., and Shigella sp. in es tape ketan hitam. The research was conducted by planting Escherichia coli on EMBA and planting Salmonella sp., and Shigella sp. on SSA. The technique used is the spread method. The results of this study indicate that samples 1, 2, 5 and, 6 contain Escherichia coli exceeding the threshold. Samples 1, 5 and, 6 contained Salmonella sp., and Shigella sp. exceed the provisions. Microbiological requirements of drinks based on PerBPOM RI No. 13 of 2019 is the maximum total Escherichia coli, which is < 3 colonies/ml and 0 colonies/25ml (negative) for Salmonella sp., and Shigella sp. So it can be concluded that 4 out of 6 samples of es tape ketan hitam in Malang City do not meet the criteria for a drink that is fit for consumption based on PerBPOM RI No. 13 of 2019
Various Concentration Distribution of Benzil Amino Purine Concentration on Callus Growth in Apple Cucumber Originated from Karawang
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The purpose of the study is to find the best Benzil Amino Purine (BAP) concentrations and proper explants for the growth of the apple cucumber callus (Cucumis sp.) on Murashige and Skoog (MS) media. The research method used was an experimental method with nonparametric statistics with treatments A0B1 (BAP 0 + Leaves), A0B2 (BAP 0 + Stem), A1B1 (BAP 0.5 μM + Leaf), A1B2 (BAP 0.5 μM + Stem), A2B1 (BAP 1.5 μM + Leaf), A2B2 (BAP 1.5 μM + Stem), A3B1 (BAP 3.0 μM+ Leaves) and A3B2 (BAP 3.0 μM+ Stems) and analyzed descriptively using the Kruskal Wallis Test. The parameters observed were callus emergence, callus diameter, growth rate and callus morphology. The results showed accretion of an apple cucumber callus at concentration 0.5 μM BAP + stem which exerted a faster effect on callus formation time (27 hsi), 1.5 μM BAP + stem giving the largest diameter with 1.2 cm. The stem explant gives the best growth rate (0.8 cm/3 day) as well as concentrations of 0.5 μM and 1.5 μM giving the best growth rate (0.462 cm/3 day and 0.887 cm/3 day). This result showed calluses A0B2 and A1B1 (compact + green) as well as A1B2 and A2B2 (crumb + yellowish-green)
Developing knowledge-based leaflets and community attitudes about organic agriculture to improve students' ecological literacy
Full text linkThis research aimed to produce knowledge-based leaflets and community attitudes about organic farming to improve students' ecological literacy. This research development was done based on the 4D model (Define, Design, Develop, and Disseminate) Data on community knowledge and attitudes about organic farming were obtained from questionnaires and interviews with 20 farmers. The data is implemented into leaflets. Leaflet validation was carried out by design experts, material experts, and science teachers. Limited trials to determine student responses were given to eight students. The score obtained from the validation by design experts is 49.5 or 82.5% (good). The validation results by material experts are 50.5 or 84% (good). The science teacher validation scored 45.25 or 90.5 (good). The trial by eight students obtained a percentage of 91.6% with a positive response. The results of the normalized gain score showed an increase in learning with an average score of 0.61 in the experimental class (high). The independent t-test is -4.058, at df 58, the significance value is 5%, t-table value is 2.00. Thus, it can be concluded that the leaflet developed is effective in increasing students' ecological literacy. At df 58, the significance value is 5%, and the t-table value is 2.00. Thus, it can be concluded that the leaflet developed is effective in increasing students' ecological literacy
Development of a Creative Manual Book for Science Youth Scientific Group
Full text linkOne of the world of education components that specifically aims to develop students' creativity is the Youth Scientific group (KIR). Based on the case studies, information was obtained that KIR participants generally still have difficulty generating ideas. Some of the factors that caused KIR participants' difficulty in creating ideas were lack of knowledge and the absence of a guide to guide them in making ideas. The purpose of this study was to develop a technical guidebook for making ideas for KIR students. Products are developed through development research in a sequence of steps: Define, design, and develop. This study provides the results that the product being developed has the following characteristics: 1) consists of 2 parts, namely the formation of new cognitive schemes and the formation of product idea designs, 2) The section on the formation of the New Cognitive Schema is designed based on the cognitive load theory, 3)The product idea design section is designed based on the Creative Process Learning theory. The product developed has a score with a very decent category but needs to be given significant improvements in the aspect of indicators and the addition of entrepreneurship material and SWOT analysis
Panelist's Level of Favor for Natural Non-MSG Flavor from Different Fish Meat
Full text linkTujuan dari penelitian ini adalah untuk mengetahui tingkat kesukaan panelis terhadap penyedap rasa alami non MSG yang dibuat dari daging ikan yang berbeda. Prosedur pada penelitian ini yaitu pembuatan penyedap rasa alami dari ikan kembung dan ikan layang, perhitungan rendemen ikan dan analisis tingkat kesukaan panelis terhadap penyedap rasa alami non MSG dari daging ikan yang berbeda. Berdasarkan hasil penelitian, tahapan pengolahan penyedap rasa alami non MSG berbahan baku ikan meliputi proses pemilihan bahan baku, pencucian I, pemfilletan, pencucian II, penghalusan I, penimbangan I, pengeringan, penghalusan II, pengayakan, penimbangan II dan pengemasan. Jumlah rendemen ikan yang dapat dimanfaatkan sebagai bahan baku utama pembuatan penyedap rasa alami non MSG yaitu sebesar 50-53 %. Pengujian analisis tingkat kesukaan panelis terhadap penyedap rasa alami non MSG dari daging ikan yang berbeda diperoleh hasil bahwa tingkat kesukaan rasa dan aroma penyedap rasa ikan layang lebih disukai di bandingkan dengan rasa dan aroma penyedap rasa ikan kembung. Hal ini dikarenakan rasa dan aroma yang dihasilkan dari asam glutamate pada penyedap rasa ikan layang lebih kuat. Tingkat kesukaan terhadap tekstur penyedap rasa ikan kembung dan ikan layang masing-masing sebesar 6,6 dan 6,2 (agak suka). Sedangkan tingkat kesukaan terhadap warna penyedap rasa ikan kembung lebih disukai dari pada ikan layang dengan nilai tingkat kesukaan penyedap rasa ikan kembung 7,4 (suka).
Kata Kunci : Tingkat Kesukaan, Penyedap Rasa Alami, Ikan Kembung, Ikan Layang