ISSN / EISSN : 2527-9939 / 2622-3384
Published by: Universitas Wiralodra (10.31943)
Total articles ≅ 79
Latest articles in this journal
Mangifera Edu, Volume 6, pp 129-138; https://doi.org/10.31943/mangiferaedu.v6i2.125
Termiticide 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.
Mangifera Edu, Volume 6, pp 139-152; https://doi.org/10.31943/mangiferaedu.v6i2.120
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).
Mangifera Edu, Volume 6, pp 169-181; https://doi.org/10.31943/mangiferaedu.v6i2.129
Es 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.
Mangifera Edu, Volume 6, pp 182-196; https://doi.org/10.31943/mangiferaedu.v6i2.128
Arabic 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.
Mangifera Edu, Volume 6, pp 115-128; https://doi.org/10.31943/mangiferaedu.v6i2.124
Curly 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-2
Mangifera Edu, Volume 6, pp 153-168; https://doi.org/10.31943/mangiferaedu.v6i2.126
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.
Mangifera Edu, Volume 6, pp 98-114; https://doi.org/10.31943/mangiferaedu.v6i2.132
Metacognitive 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.
Mangifera Edu, Volume 6, pp 29-43; https://doi.org/10.31943/mangiferaedu.v6i1.118
Woody plant produce small to large seeds which can affect germination process. Cotyledons as an important food source for early growth of seedlings. The position, function, and type of cotyledons when seeds germinate varies. This research aimed to determine cotyledons characters of woody plant seedlings collection in Bogor Botanic Gardens. The position, function and type of cotyledons were observed for 65 species of seedlings.This research used an observative method and was analyzed descriptively.The position of cotyledons when the seeds germinate are epigeal (above the ground) and hypogeal (remain in the soil). The epigeal cotyledons type found in 44 species that is higher than hypogeal cotyledons type (21 species). The function of cotyledons for seedlings is to reserve food or photosynthesis. Species with cotyledon reserve type were more than foliar cotyledons type (43 species and 22 species, respectively). The proportion of seedling types CER (cryptocotylar-epigeal-reservoir), CHR (cryptocotylar-hypogeal-reservoir), PEF (phanerocotylar-epigeal-foliaceous), PER (phanerocotylar-epigeal-reservoir), PHR (phanerocotylar-hypogeal-reservoir) were 3.08%, 16.92%, 33,85%, 29,23%, 16,92%, respectively.
Mangifera Edu, Volume 6, pp 82-97; https://doi.org/10.31943/mangiferaedu.v6i1.122
The research background is that it can develop biological assessment based on science process skills because science process skills are important for logical thinking to train students' thinking skills. From the results of the initial needs analysis of class X questions, science process skills are still low, the teacher has not fully developed the science process skills-based assessment because it still uses questions from biology books. This study aims to determine the characteristics and feasibility of assessment based on science process skills developed in biology class X semester 2. This research is development research. Development is carried out using a procedural model by adapting Mcintire's research and development model, with 4 stages of test development including defining competencies, test participants and test objectives, developing test plans, compiling test items, writing administrative instructions. This research stage is limited because it only wants to know the characteristics and feasibility of the assessment. The research instrument used an interview sheet, a questionnaire sheet, and an observation sheet. Expert validation was carried out by 6 expert validators: (1) material experts; (2) linguists; and (3) evaluation experts; The data analysis technique uses qualitative descriptive that refers to the formula adapted by Sugiyono (2018) with a scale of 4. The results of this study are in the form of a biological assessment based on science process skills in the form of multiple-choice questions in which there is biology material for class X semester 2. Biological assessment characteristics are based on science process skills, namely using indicators consisting of observing, grouping, interpreting, predicting, asking questions, hypothesizing, planning experiments, applying concepts, and communicating. The feasibility of a biological assessment based on science process skills based on expert validators, the results are valid to very valid so that the biological assessment based on science process skills developed is feasible to be used to measure the science process skills of class X students.
Mangifera Edu, Volume 6, pp 44-55; https://doi.org/10.31943/mangiferaedu.v6i1.114
Research on indirect organogenesis of apple cucumber (Cucumis sp.) Was conducted from June until August 2020. The aim of the study is to get the best results from IAA and Kinetin concentrations on the growth of buds organogenesis to apple cucumber plants (Cucumis sp.) in B5 Gamborg Medium. The method used was an experimental method with nonparametric statistics with 25 treatments that were repeated 5 times and analyzed descriptively by the Kruskal Wallis test. The results showed that growth of apple cucumber shoots at the best combination treatment of IAA and Kinetin that is at concentrations 2,5x10-7 IAA and 3,2x10-5 Kinetin (A3B1) which resulted in appear shoots time at 39 days after initiation (hsi), it can provide the best growth of shoot height of 0,4 cm and the highest number of a shoot is 3. However, treatment with concentration 2,0x10-7 M IAA and 4,4x 10-5 Kinetin (A2B2) resulted in appearing shoots time at 39 days after initiation (hsi) and shoot height of 0,35 cm.