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Arif Rahman Hikam
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Fakultas Biologi Universitas Jenderal Soedirman Jl. dr. Soeparno No. 63 Purwokerto, Kabupaten Banyumas Kode Pos 53122
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BioEksakta : Jurnal Ilmiah Biologi Unsoed
Published by Universitas Jenderal Soedirman
ISSN : -     EISSN : 27148564     DOI : -
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Veterinary
Jurnal BioEksakta menerbitkan artikel ilmiah hasil penelitian dalam bidang biologi umum termasuk Ekologi dan konservasi, Taksonomi dan Struktur, Biogeografi, Evolusi, Biodeversitas, Fisiologi dan Reproduksi, Biologi sel, Biologi Molekuler dan Genetika.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 16 Documents
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Search results for , issue "Vol 4 No 1 (2022): Bioeksakta" : 16 Documents clear
Keragaman Tumbuhan yang Dimanfaatkan Sebagai Pewarna Alami Batik Di Kabupaten Banyumas Makdalena Viviliani Sir; Wiwik Herawati; Sukarsa Sukarsa
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.2022.4.1.4592

Abstract

Natural dyes are compounds that can be produced from various types of natural sources. Plants that produce natural dyes can be obtained from their parts such as leaves, bark, fruit skin, seeds, roots and flowers, which have gone through several processes, namely boiling, burning, crushing, pounding and immediately used. This study aims to determine the types of plants used as natural dyes for batik, and to determine which parts of plant organs are used as natural dyes for batik. The method used in this research is a survey method. Sampling was done by purposive sampling. Data were collected by observing and interviewing the batik home industry in Banyumas Regency. The parameters used are the types of plants and plant organs that are used as natural dyes for batik. Data were tabulated and identified for analysis. Analysis of the research data was carried out descriptively. Plant used as natural batik dyes in several Batik Home Industries in Banyumas Regency consists of 12 plant species the parts of plants were roots, stems, leaves, tubers, wood, bark, fruit skin, and coir. Natural dyes of batik are obtained by boiling and pounding. Then Used by Soaking, Dipping, and to draw motifs.
Karakterisasi dan Optimasi Aktivitas Bakteriosin Isolat Bakteri Asam Laktat LG-90 Asal Sedimen Mangrove Pantai Logending Fiqita Mayliani; Dyah Fitri Kusharyati; Dini Ryandini
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.2022.4.1.4575

Abstract

Lactic acid bacteria (LAB) are a group of Gram-positive bacteria that produce various active metabolites, including lactic acid, ethanol, hydroperoxides, and bacteriocins. Bacteriocin is a peptide that has a broad spectrum to inhibit the growth of pathogenic microbes. The ability of bacteriocins to inhibit microbial growth is influenced by various factors, including the concentration of antimicrobial substances, temperature, storage time, pH, and microbial properties. LG-90 isolated from mangrove sediments at Logending Beach located in Ayah Village, Ayah District, Kebumen Regency, is known to be capable of producing bacteriocins. This research aimed to determine the characteristics and identity of LG-90, the optimum time of bacteriocin production, and the optimum pH and temperature for bacteriocin activity of LG-90 as antimicrobial agents. This research used a survey method. The independent variable in this research was LAB LG-90 isolates and the dependent variable were the ability to produce bacteriocins and their antibacterial power. The main parameter observed was diameter of the inhibition zone and the supporting parameters were morphological, physiological, and biochemical properties of bacteria. Descriptive data analysis and characterization of bacterial isolates refers to Bergey’s Manual of Systematic Bacteriology. The results showed that LG-90 from the mangrove sediments of Logending Beach had the similar phenetic characters as the genus Lactobacillus. Optimum bacteriocin production of LG-90 at an incubation time of 16 hours. Optimum antimicrobial activity of LG-90 bacteriocin at pH 6 and heating temperature of 40oC.
Identifikasi dan UJi Potensi Amilolitik Isolat Jamur Pendegradasi Sampah Organik Insaaniy Mahdiyatul Haqq; Ratna Stia Dewi; Aris Mumpuni; Arif Rahman Hikam; Dwiana Muflihah Yulianti
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.2022.4.1.4748

Abstract

Sampah organik merupakan sampah yang tersusun dari senyawa organik. Penumpukan sampah organik cukup menjadi masalah serius. Jamur memiliki peran penting untuk mendegradasi sampah organik dalam proses pengomposan. Biodegradasi sampah organik berkaitan erat dengan kemampuan jamur dalam menghidrolisis senyawa amilum. Tujuan dari penelitian ini yaitu mengetahui isolat jamur pendegradasi amilum yang diperoleh dari sampah organik dan mengetahui potensi amilolitik dari isolat jamur tersebut. Penelitian ini dilakukan dengan metode survei dan eksperimental . Sampel sampah dapur yang terdiri atas sisa makanan dan bahan organik lainnya diambil dari rumah penduduk yang terletak di Kelurahan Bancarkembar, Bobosan, Grendeng, Karangwangkal, Pabuaran, Purwanegara, dan Sumampir. Tes screening menggunakan medium Starch Agar untuk mengetahui potensi amilolitik dari isolat jamur. Hasil menunjukkan terdapat delapan isolat jamur yang berpotensi dalam mendegradasi amilum. Sebanyak enam isolat jamur yang memiliki indeks amilolitik terbaik dengan nilai IE ≥ 1 teridentifikasi sebagai isolat Fusarium sp., Aspergilus sp., dan Penicillium sp. Selanjutnya untuk mengetahui aktivitas amilolitik secara kuantitatif dilakukan dengan metode DNS melalui pengukuran kadar glukosa. Isolat jamur Fusarium sp. memiliki aktivitas degradasi amilum yang paling tinggi dengan rata-rata kadar glukosa dari medium Fusarium sp. sebanyak 3.568,63 ppm
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.
Distribusi dan Sex Ratio Udang Macrobrachium pilimanus pada Sungai Mengaji di Banyumas Prodhiana Prodhiana; Moh. Husein Sastranegara; Elly Tuti Winarni
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.2022.4.1.4578

Abstract

The one forms of freshwater ecosystems which is the habitat of various organisms is rivers. The Mengaji River is a river that springs from the southern slopes of Mount Slamet. Rivers always experience changes in physical, chemical, and biological factors. The decline in river water quality greatly affects the distribution and sex ratio of Macrobrachium pilimanus in the Mengaji River. This research aims to determine the distribution and sex ratio of M. pilimanus shrimp in the Mengaji River. The research was conducted using a survey method for determining stations and purposive random sampling for sampling. The samples obtained were then identified and measured using the morphometric method. Research was conducted between June-August 2020. Shrimp distribution data were analyzed using the "F" test with SPSS 2016, while the sex ratio of shrimp was analyzed using the sex ratio formula from the Kao and Liu method. The results of this study found that the distribution of M. pilimanus shrimp in the Mengaji River, Banyumas, was not evenly distributed between stations. The highest distribution was found at Station IV, while the highest female shrimp was found at Station II. The sex ratio of M. pilimanus shrimp in the Mengaji River Banyumas was not balanced and was dominated by females. The sex ratio was found to be the highest at Station II.
Pengaruh pH dan Waktu Inkubasi Berbeda Terhadap Pertumbuhan dan Produksi β-Glukan Schizophyllum commune Amalia Sofia Maharani; Nuraeni Ekowati; Nuniek Ina Ratnaningtyas
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.2022.4.1.4594

Abstract

The main purpose of this study are to determine the optimum value of pH and incubation time on S. commune's growth, and also the optimum value of pH and incubation time on β-glucan production of S. commune. The research was conducted by experimental method of completely randomized factorial design (CRD factorial) with two factors carried out in three repetitions. The treatments provided included variations in pH (P) with three levels, namely pH 5 (P1), pH 6 (P2), and pH 7 (P3), and variations in incubation time (W) with three levels, namely incubation time of 20 days (W1). , incubation time of 25 days (W2), and incubation time of 30 days (W3). Variables which used in this research independent and dependent variables. The independent variables were pH and incubation time, while the dependent variables were fungal mycelium growth and β-glucan production. The main parameter observed was β-glucan weight. The supporting parameters were dry biomass weight and the final pH medium. Data analysis was performed by Analysis of Variance (ANOVA) at 95% accuracy levels, followed by Duncan's test (Ducan Multiple Range Test). The results showed that pH and incubation time were significantly affected to the growth and production of β-glucan fungus S. commune. The value of pH 6 and incubation time of 25 days was the optimum pH and incubation time for the growth of S. commune fungus, and also pH 5 and incubation time of 25 days was the optimum pH and incubation time for β-glucan production of S. commune.
Induksi Kalus Nepenthes mirabilis(Lour.) Druce Menggunakan NAA danTDZ Nina Nurussakinah; Murni Dwiati; Iman Budisantoso
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.2022.4.1.4242

Abstract

Nepenthes sp. has a characteristic in the form of a modified leaf tip into a pitcher. Nepenthes mirabilis (Lour.) Druce in its original habitat is widely hunted for sale. Propagation of N. mirabilis in nature has very little success rate, to overcome this it is necessary to propagate it by means of in vitro culture and use young leaf explants to form callus. Growth regulators such as Auxins (NAA) and Cytokinins (TDZ) can stimulate callus growth. Auxins can stimulate callus formation by stimulating cell expansion and cytokinins can stimulate the cell division process. The purpose of this study was to determine the effect of NAA and TDZ in inducing N. mirabilis callus and to determine the interaction between NAA and TDZ in inducing N. mirabilis callus. The experimental design used was a factorial CRD pattern, with two factors, namely NAA and TDZ. NAA consists of four levels, namely, 0 mg / L (N0); 0.5 mg / L (N1), 1 mg / L (N2) and 1.5 mg / L (N3). TDZ also consists of four levels, namely 0 mg / L (T0); 1 mg / L (T1); 2 mg / L (T2) and 3 mg / L (T3). Each treatment was repeated three times. The results showed that the addition of NAA and TDZ had an effect on callus induction of N. mirabilis. The TDZ concentration of 1 mg / L (T1) stimulated callus induction, especially the percentage of callus formation and callus diameter. Meanwhile, NAA 1 mg / L (N2) boosted the percentage of N. mirabilis callus formation.
Histopatologi Hepar Mencit (Mus musculus) Jantan yang Diberi Air Rebusan Plastik terhadap Antioksidan Alami Nuridha Audinia Safitri; Atang Atang; Eko Setio Wibowo
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.2022.4.1.4606

Abstract

Plastic in Indonesian daily life cannot be avoided anymore. Materials for the manufacture of plastic can cause free radicals to the body, thus affecting the immune system. These materials are including phthalates and bisphenol-A (BPA), which commonly called as plasticizers. Free radicals in the body can be inhibited with antioxidants. Antioxidants can be obtained from endogenous (inside the body) and exogenous (outside the body). The purpose of this study was to determine the damage level of liver histopathological structure as the result of plastic boiled water induction towards natural antioxidants feeding on male mice (Mus musculus). This study used an experimental method with a completely randomized design (CRD) consisting of six treatments and five replications for 21 days. The treatments included two control groups and four other groups treated with plastic boiled water and natural antioxidants. The independent variable is natural antioxidants and the dependent variable is the liver histopathology of male mice. The qualitative parameters observed were the liver histopathological structure of male mice is in the state of inflammatory cell infiltration, degeneration, and necrosis. The research data is an overview of the liver histopathological structure of male mice. The obtained data were analyzed using descriptive qualitative analysis method. Oral induction of boiled-plastic water can affect the changes of liver histological structure. Natural antioxidants given in male mice can maintain the tissue structure as the result of boiled-plastic water induction. The results showed the damage level of male mice liver histopathological structure as reversible degeneration.
Induksi Kalus Nepenthes mirabilis(Lour.) Druce Menggunakan NAA danTDZ Nurussakinah, Nina; Dwiati, Murni; Budisantoso, Iman
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.2022.4.1.4242

Abstract

Nepenthes sp. has a characteristic in the form of a modified leaf tip into a pitcher. Nepenthes mirabilis (Lour.) Druce in its original habitat is widely hunted for sale. Propagation of N. mirabilis in nature has very little success rate, to overcome this it is necessary to propagate it by means of in vitro culture and use young leaf explants to form callus. Growth regulators such as Auxins (NAA) and Cytokinins (TDZ) can stimulate callus growth. Auxins can stimulate callus formation by stimulating cell expansion and cytokinins can stimulate the cell division process. The purpose of this study was to determine the effect of NAA and TDZ in inducing N. mirabilis callus and to determine the interaction between NAA and TDZ in inducing N. mirabilis callus. The experimental design used was a factorial CRD pattern, with two factors, namely NAA and TDZ. NAA consists of four levels, namely, 0 mg / L (N0); 0.5 mg / L (N1), 1 mg / L (N2) and 1.5 mg / L (N3). TDZ also consists of four levels, namely 0 mg / L (T0); 1 mg / L (T1); 2 mg / L (T2) and 3 mg / L (T3). Each treatment was repeated three times. The results showed that the addition of NAA and TDZ had an effect on callus induction of N. mirabilis. The TDZ concentration of 1 mg / L (T1) stimulated callus induction, especially the percentage of callus formation and callus diameter. Meanwhile, NAA 1 mg / L (N2) boosted the percentage of N. mirabilis callus formation.
Karakterisasi dan Optimasi Aktivitas Bakteriosin Isolat Bakteri Asam Laktat LG-90 Asal Sedimen Mangrove Pantai Logending Mayliani, Fiqita; Kusharyati, Dyah Fitri; Ryandini, Dini
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.2022.4.1.4575

Abstract

Lactic acid bacteria (LAB) are a group of Gram-positive bacteria that produce various active metabolites, including lactic acid, ethanol, hydroperoxides, and bacteriocins. Bacteriocin is a peptide that has a broad spectrum to inhibit the growth of pathogenic microbes. The ability of bacteriocins to inhibit microbial growth is influenced by various factors, including the concentration of antimicrobial substances, temperature, storage time, pH, and microbial properties. LG-90 isolated from mangrove sediments at Logending Beach located in Ayah Village, Ayah District, Kebumen Regency, is known to be capable of producing bacteriocins. This research aimed to determine the characteristics and identity of LG-90, the optimum time of bacteriocin production, and the optimum pH and temperature for bacteriocin activity of LG-90 as antimicrobial agents. This research used a survey method. The independent variable in this research was LAB LG-90 isolates and the dependent variable were the ability to produce bacteriocins and their antibacterial power. The main parameter observed was diameter of the inhibition zone and the supporting parameters were morphological, physiological, and biochemical properties of bacteria. Descriptive data analysis and characterization of bacterial isolates refers to Bergey’s Manual of Systematic Bacteriology. The results showed that LG-90 from the mangrove sediments of Logending Beach had the similar phenetic characters as the genus Lactobacillus. Optimum bacteriocin production of LG-90 at an incubation time of 16 hours. Optimum antimicrobial activity of LG-90 bacteriocin at pH 6 and heating temperature of 40oC.

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