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All Journal BioEksakta : Jurnal Ilmiah Biologi Unsoed
Muachiroh Abbas
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Veterinary

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pemanfaatan ekstrak kulit buah manggis (Garcinia mangostana L.) sebagai pewarna alami jaringan daun dan batang krokot (Portulaca oleracea L.) Gita Fitri Yani; Muachiroh Abbas; Siti Samiyarsih
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 2 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (659.845 KB) | DOI: 10.20884/1.bioe.2020.2.2.2139

Abstract

The dye functions to clarify the plant tissue that will be observed with a microscope, the dye that is commonly used is synthetic dyes that are carcinogenic, the price is expensive and can pollute the environment. Natural dyes are an alternative to synthetic dyes because they are safe, inexpensive and environmentally friendly. natural dye sources obtained from plant parts such as fruit peels. Efforts to use mangosteen rind waste as an herbal remedy can also be used as a natural dye because it has a high enough anthocyanin content. Anthocyanins in mangosteen peel can be obtained through extraction. Maceration is an easy extraction method where the results are only affected by the type of solvent and the extraction time. Purslane (Portulaca oleracea L.) is used as research material because currently purslane has been widely used because of its nutritional content including high metabolic and antioxidant regualting substances. This study aims to determine the ability of mangosteen rind extract in coloring the leaf and stem tissue of purslane, and to determine the type of solvent and optimal immersion time to produce mangosteen rind extract so that it can color the leaf tissue and stems purslane well. The study was conducted experimentally using a Completely Randomized Design (CRD) with 2 factors: factor 1 was the type of solvent using ethanol 96% and citric acid 14%, the second factor was immersion time, namely 26, 27 and 28 hours. The data obtained were analyzed descriptively qualitatively including the contrast and clarity of the preserved tissue preparation of leaf and stem purslane. The results showed mangosteen rind extract has the ability to dye leaf tissue and stems. The type of 14% citric acid solvent with 28 hours soaking time was optimal in producing mangosteen rind extract so that it was able to dye the leaf and stem tissue of purslane.
Uji Viabilitas Polen Tanaman Kedelai (Glycine max (L.) Merril) pada berbagai Lama Penyimpanan Hastya Tri Andini; Muachiroh Abbas; Kamsinah kamsinah
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 4 No 1 (2022): Bioeksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2022.4.1.4595

Abstract

Soybean (Glycine max (L.) Merril) is one of the most important grain-producing crops after rice, wheat, millet and barley. Pollen is a male gametophyte produced by seed plants. Pollen can be used for plant identification because it has a distinctive structure and ornamentation, besides that it can also be used as a plant breeding agent as a contributor to male parental characters. The character of pollen as parental male is very important in plant breeding. One way to know the quality of pollen is to look at its viability. Pollen viability can be tested by staining method or by germination method. Pollen viability is known to be lost over a certain period of time. The purpose of this study was to determine the effect of storage time on viability of soybean pollen, and to determine the best storage period with the highest viability of soybean pollen. This research was conducted experimentally with a Completely Randomized Design (CRD) consisting of 4 treatments, namely P0, Control. P1, 7 days of storage. P2, 14 days of storage. P3, 21 days of storage. The independent variable is variation in storage time while the dependent variable is pollen viability. The parameters observed were the number of stained pollen, germination capacity, and the length of the germinating pollen tube as evidence that the pollen was viable. The research data obtained were analyzed using Analysis of Variance (ANOVA) with an error rate of 5%, then continued with the BNT test with an error rate of 5%. The results showed that the provision of storage time treatment on soybean pollen had an effect on pollen viability, namely by reducing pollen viability. The best shelf life to get the highest pollen viability in soybean pollen is 0 to 7 days after the sample is taken.
Co-Authors Gita Fitri Yani Hastya Tri Andini Kamsinah Kamsinah Siti Samiyarsih