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All Journal agriTECH Bioscientist : Jurnal Ilmiah Biologi
SOLICHATUN SOLICHATUN
Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana Jl. PB. Sudirman Denpasar 80362 Bali
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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Analisis Fitokimia dan Aktivitas Antioksidan Daun Kopi Robusta (Coffea canephora) Berdasarkan Perbedaan Ketinggian Tempat Tumbuh Nintowati, Purina; Solichatun, Solichatun; Suratman, Suratman
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13601

Abstract

Robusta Coffee Leaves are known to have high antioxidants that can stabilize free radical attacks. Based on the height of the place where Robusta Coffee grows, it has different characteristics, including producing different qualities and flavors from one another. This study aims to determine the content of phytochemical compounds and the antioxidant activity of Robusta coffee leaves based on differences in the height of the place where it grows. The research method used was sampling at several heights including 511 masl, 434 masl, 354 masl, 204 masl, 122 masl, and laboratory research for phytochemical and antioxidant tests. Data analysis used the ANOVA, DMRT, and Bivariate correlation tests to determine the correlation between height and antioxidant activity. The results showed that all five heights contained alkaloid and flavonoid compounds. The highest inhibition of antioxidant activity was found at an altitude of 511 masl with a percentage of 61.89% ±8.08b, while the lowest inhibition of antioxidant activity was found at an altitude of 122 masl with a percentage of 31.92% ±7.38a. Antioxidant activity at all five altitudes is classified as a very strong antioxidant with an IC50 value <50. Altitude has a significant effect (P<0.05) on antioxidant inhibition. Altitude has a positive correlation with antioxidant activity.
The Effect of Seed Priming Using Giberellic Acid (GA3) on Growth of Groundnut (Arachis hypogaea L.) and Lurik Groundnut (Arachis hypogaea L. var. Lurik) Tamonob, Arshinto; Solichatun, Solichatun; Suratman, Suratman
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13774

Abstract

Seed priming is a technique for treating seeds before germination to improve the quality of the plants produced. Seed priming can be done by soaking the seeds in various solutions, including hormone solutions. Groundnut (Arachis hypogaea L.) is the second most important commodity in Indonesia for both common and striated groundnut. This research aims to determine the effect of seed priming using the hormone gibberellic acid on the vegetative growth of peanuts and striated peanuts. This research used a completely randomized design with a factorial pattern; the first factor is variation in the type of peanut; The second factor is the variation in gibberellic acid concentration for seed priming, namely 0 ppm (only distilled water), 100 ppm, 200 ppm, 300 ppm and 400 ppm and without priming. Each treatment was carried out in 3 repetitions. The variables observed were plant wet weight, plant dry weight, chlorophyll content, number of leaves, shoot:root ratio. Quantitative data were analyzed using Analysis of Variance (ANOVA) and DMRT with a confidence level of 95%. The results of the research showed that seed priming treatment using the gibberellic acid hormone had a significant effect on the wet weight and dry weight of the plants; shoot:root ratio, and chlorophyll content of peanut and striated peanut leaves. Seed priming treatment using the hormone gibberellic acid had no significant effect on the number of leaves of ordinary peanuts and striated peanuts.
Analisis Fitokimia dan Aktivitas Antioksidan Daun Kopi Robusta (Coffea canephora) Berdasarkan Perbedaan Ketinggian Tempat Tumbuh Nintowati, Purina; Solichatun, Solichatun; Suratman, Suratman
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13601

Abstract

Robusta Coffee Leaves are known to have high antioxidants that can stabilize free radical attacks. Based on the height of the place where Robusta Coffee grows, it has different characteristics, including producing different qualities and flavors from one another. This study aims to determine the content of phytochemical compounds and the antioxidant activity of Robusta coffee leaves based on differences in the height of the place where it grows. The research method used was sampling at several heights including 511 masl, 434 masl, 354 masl, 204 masl, 122 masl, and laboratory research for phytochemical and antioxidant tests. Data analysis used the ANOVA, DMRT, and Bivariate correlation tests to determine the correlation between height and antioxidant activity. The results showed that all five heights contained alkaloid and flavonoid compounds. The highest inhibition of antioxidant activity was found at an altitude of 511 masl with a percentage of 61.89% ±8.08b, while the lowest inhibition of antioxidant activity was found at an altitude of 122 masl with a percentage of 31.92% ±7.38a. Antioxidant activity at all five altitudes is classified as a very strong antioxidant with an IC50 value <50. Altitude has a significant effect (P<0.05) on antioxidant inhibition. Altitude has a positive correlation with antioxidant activity.
The Effect of Seed Priming Using Giberellic Acid (GA3) on Growth of Groundnut (Arachis hypogaea L.) and Lurik Groundnut (Arachis hypogaea L. var. Lurik) Tamonob, Arshinto; Solichatun, Solichatun; Suratman, Suratman
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 2 (2024): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i2.13774

Abstract

Seed priming is a technique for treating seeds before germination to improve the quality of the plants produced. Seed priming can be done by soaking the seeds in various solutions, including hormone solutions. Groundnut (Arachis hypogaea L.) is the second most important commodity in Indonesia for both common and striated groundnut. This research aims to determine the effect of seed priming using the hormone gibberellic acid on the vegetative growth of peanuts and striated peanuts. This research used a completely randomized design with a factorial pattern; the first factor is variation in the type of peanut; The second factor is the variation in gibberellic acid concentration for seed priming, namely 0 ppm (only distilled water), 100 ppm, 200 ppm, 300 ppm and 400 ppm and without priming. Each treatment was carried out in 3 repetitions. The variables observed were plant wet weight, plant dry weight, chlorophyll content, number of leaves, shoot:root ratio. Quantitative data were analyzed using Analysis of Variance (ANOVA) and DMRT with a confidence level of 95%. The results of the research showed that seed priming treatment using the gibberellic acid hormone had a significant effect on the wet weight and dry weight of the plants; shoot:root ratio, and chlorophyll content of peanut and striated peanut leaves. Seed priming treatment using the hormone gibberellic acid had no significant effect on the number of leaves of ordinary peanuts and striated peanuts.
Karakterisasi Morfologi dan Biokimiawi Berbagai Kultivar dan Aksesi Jeruk Pamelo (Citrus maxima (burm.) merr.) di Kabupaten Magetan Istiqomah, Intan Lailatul; Suratman, Suratman; Solichatun, Solichatun
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2025): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i1.14984

Abstract

This study examines the morphological characteristics, sugar content, and antioxidant activity of various cultivars and accessions of Pomelo Orange in Magetan Regency. Samples were taken using a purposive sampling method. Morphological characters were observed based on IPGRI characterization, while antioxidant activity analysis was carried out using a UV-Vis spectrophotometer. Morphological character data were analyzed descriptively and antioxidant activity was analyzed by One Way Anova method and followed by DMRT (Duncan's Multiple Range Test) test. The results showed that (1) the highest inhibition percentage was found in the Srinyonya cultivar in Takeran, which was 76.15%; (2) Overall, Pomelo Orange cultivars have antioxidant activity with IC50 values ranging from 5.78–27.17 ppm, indicating strong antioxidant activity; (3) The sugar content in various cultivars ranges from 8–10 °Brix, with the highest levels found in the Javanese cultivar in Sukomoro, which was 10.7 °Brix.
Physicochemical Characteristics of Potato (Solanum tuberosum L.) after Chitosan Coating and Storage at Various Temperature Mudyantini, Widya; Pramesthi, Vionita Dyah; Suranto, Suranto; Solichatun, Solichatun; Pitoyo, Ari; Suratman, Suratman; Purnama, Purin Candra
agriTECH Vol 45, No 1 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.87199

Abstract

Potato (Solanum tuberosum L.) plant is widely favored due to its versatility in various processed products, but perishable. This study aimed to determine the effect of chitosan coating and storage at various temperatures on the physiological and chemical characteristics of potato tubers. This research used 2 variables, namely the concentration of chitosan (0, 1, 1.5 and 2%) and storage temperatures of 0, 10 and 25°C. The parameters observed included tuber skin color, weight loss, hardness, the thickness of the chitosan layer and tissue penetration, oxygen levels, water content, starch degradation, reduced sugar content, and sprouting amount. Furthermore, data were analyzed using the Analysis of Variance (ANOVA) test. The results showed the effect of chitosan coating and storage temperature on weight loss, color, oxygen level, hardness, water content, starch degradation, and reduced sugar content in potato tubers during storage. The most effective treatment was 1.5% chitosan coating combined with a storage temperature of 10°C.
Co-Authors Istiqomah, Intan Lailatul Nintowati, Purina Pitoyo, Ari Pramesthi, Vionita Dyah Purnama, Purin Candra Suranto Suranto Suratman Suratman Tamonob, Arshinto WIDYA MUDYANTINI