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Published by Universitas Negeri Padang

ISSN : 2614669X EISSN : 2579308X DOI : -

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Bioscience ISSN 2579-308X (Electronic) ISSN: 2614-669X (Print) is peer-reviewed journal and scientific journal publish by Universitas Negeri Padang. The aim of this journal is to publish articles dedicated to all aspects of the latest outstanding developments in the field of biology. Scope of this journal is ;Environmental Biology; Genetics and Biotechnology; Biology of Function; Systematics, Structure and Development.

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Articles 10 Documents

Search results for , issue "Vol 1, No 2 (2017): Biology" : 10 Documents clear

The Effect of Mango Juice (Mangifera Indica) and Long Ripening on the Quality Of Cow's Milk Curd Selly Fildawati; Linda Advinda; Azwir Anhar
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

The curd is a traditional food Minangkabau in West Sumatra. This product is made from buffalo milk made with buffalo milk entering into the bamboo and covered with banana leaves and left at room temperature for about 1 to 2 days. Due to the limited availability of buffalo milk, buffalo milk is replaced with cow's milk. Obstacles encountered in the development of the curd is curd less flavorful savory and original taste sour curd so that the public interest is reduced. Therefore, we need a way to neutralize the smell and taste of sour curds, one of which is the juice of mango (Mangifera indica). The purpose of this study was to determine the effect of mango juice and long ripening on the quality of cow's milk curd. This study is experimental and descriptive. The design used was a 3x2 factorial randomized block design with three replications. A factor is the mango juice consisting of 3 treatment, and long ripening factor B is composed of 2 treatments. Research was conducted in January 2016 in the Laboratory of Livestock Product Technology Faculty of Animal UNAND. Parameters measured were total acid content, protein content, and organoleptic. Data were analyzed by descriptive qualitative analysis of variance (ANOVA) and a further test DNMRT at 5% level. The results of this study are the addition of mango juice and long curing does not affect the total acid content (% TAT). However, the addition of mango juice and long curing effect on protein levels although there is no interaction between the concentration and duration of ripening. Lowest total acid level was the control treatment on a long curing 48 hours and total acid concentration is the highest concentration of 3% at 36 hours. Lowest protein content that is the control treatment at 36 hours and the highest concentration of 3% at 48 hours. The results of organoleptic tests show the variation of each treatment. Keyword: cow's milk curd, mango juice, total acid content, protein content, organoleptic.

Effect of Mangosteen Skin Extract (Garcinia mangostana L.) on Males Mice (Mus musculus L. Swiss Webster) Uric Acid Level Rizki Ananda Fitri; Ramadhan Sumarmin; Elsa Yuniarti
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Uric acid (gout) caused by high levels of uric acid in the blood (hyperuricemia). Inflammation caused by uric acid crystals cause pain, stiffness, and swelling in the joints. Gout medication allopurinol commonly consumed ie the mechanism of action as an inhibitor of xanthine oxidase, but this drug side effects such as nausea and diarrhea. The skin of the mangosteen fruit contains xanthones and flavonoids compounds were allegedly able to lower uric acid levels. This study aims to determine the effect of mangosteen peel extract (Garcinia mangostana L.) on uric acid levels in mice (Mus musculus L. Swiss Webster) Males. Research has been conducted in December-January 2016 Biology Laboratory of the Department of Biological Science UNP. This research is experimental method completely randomized design (CRD) ie 4 treatments and 6 replications. Such treatment 0 g / kg (Control / P1), 0.2 g / kg (P2), 0.4 g / kg (P3), 0.6 g / kg (P4). Data were analyzed using ANOVA and using Paired Sample T-Test. Parameters measured were basal uric acid levels before and after treatment. Data taken after 4 days of the treated mice. The results were obtained uric acid levels in mice after treatment are: P1 (Control) 6.43 mg / dL, P2 5.65 mg / dL, P3 3.9 mg / dL, and P4 3.7 mg / dL. Based on the results of this study concluded that the mangosteen rind extract has no effect on uric acid levels in male mice. Keywords: uric acid (gout), xanthine oxidase, hyperuricemia, an antioxidant.

Identify Of Floc-Forming Bacteria In Shrimp Pond In Pangkep District Sukmawati Sukmawati
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

This research aims to identify the kinds of floc-forming bacteria in shrimp pond in Pangkep District. This study was a descriptive research. Floc-forming bacteria were isolated from the water and mud samples. According to microbial technique isolation procedure, by using Nutrient Agar (NA) as isolation medium. The result of this study showed that there were 37 isolates. And Then floculated activity was measured: The result showed the theme 5 isolates which have more than 79% of floculating activity namely, isolat 1,isolat 2, isolat 3, isolat 4, isolat 5, floculating activity: 90,34%, 90,34 %, 94,03%, 79,68%, 92,47% respectively. At can be cocluded that isolat 1. Enterococcus sp, isolat 2. Bacillus spdan isolat 3. Vagococcus sp..Keywords: Identification, floc-formingbacteria,shrimp pond

Isolation and Activity Test of Antimicrobial Endophytic Bacteria from Leaf Salam (Syzygium polyanthum Wight) Irdawati Yahya; Linda Advinda; Fitri Angraini
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Abstract -- Endophytic bacteria are microorganisms that exist in the system of plant tissues such as leaves, twigs, roots and they can form colonies without causing damage to the plant. The endophytic bacteria may produce secondary metabolites in accordance. One potential medicinal plant has endophytic bacteria are plant greeting (Syzygium polyanthum Wight). Part of the plant Salam particularly frequently used is part of the leaf, which serves as an antibacterial and antifungal. Because the leaves contain compounds bay leaf tannins, flavonoids and essential oils. The porpuse of this research was to find of to obtain isolates of endophytic bacteria and determine the antimicrobial activity of bay leaf (Syzygium polyanthum Wight).This research is descriptive that has done on January - February 2015 of Microbiology Laboratory at Biology Departement FMIPA, UNP. The parameters observed in the determination of isolates is a form colonies, colonies edge, elevation colonies, colony color, and Gram staining of leaves (Syzygium polyanthum Wight). The antimicrobial activity was observed with the formation zone of inhibition around the paper disc. Obtained were 11 isolates of endophytic bacteria from leaves, 5 isolates of endophytic bacteria have the ability to produce antimicrobial.Isolates had the highest antimicrobial activity that isolates DSA 1-1 with a 6.42 mm diameter inhibition zone. Keywords: antimicrobial, endophytic bacteria, bay leaf.

Isolasi dan Identifikasi Bakteri Halofilik Ikan Talang (Chorinemus sp.) dari Aia Bangih Pasaman Barat Mades Fifendy; Faradilla Rattriana; Irdawati Irdawati
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Halophilic bacteria is microorganism that live in high salinity environments up to 30%. The bacteria can be found in foods preserved by salting like salted fish. Salted fish is preserved foods are processed by salting and drying. The bacteria that live and ruin salted fish are halophilic bacteria and heterotoleran bacteria like halobacterium, micrococcus, bacillus, pediococcus, peseudomonas and vibrio. This observation aims to determine type of halophilic bacteria found in talang fish. This is descriptif observation held january up to february 2015 is microbiology laboratory FMIPA UNP and balai veteriner laboratory Bukittinggi. Research methods is cup statterplot methods. Sample is talang fis from Aia Bangih, west pasaman. Based on observation found isolate halophilic bacteria. Its belong to gram positve like coccus. From both, the isolates not capable produce endosopra. Talang fish from Aia Bangih, west pasaman contain two isolate halophilic bacteria consist of a genus and two species.Keywords : talang salted fish, halphilic bacteria, biochemical test

Making Pond And Feed Of Catfish By Farmer’s Wife At Nagari Limau Gadang Armen Amir; Mades Fifendy; Ristiono Ristiono
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/02017128080-0-00

The life of Nagari Limau Gadang residents is poor. They conduct economic activities in Kerinci Seblat National Park (TNKS), so that TNKS become damaged. To reduce the economic activities of the people in TNKS, it is necessary to conduct economic activities outside TNKS to improve the family economy. Catfish farming can serve as the main effort to increase family income. Economically catfish farming is very profitable. Catfish farming is not difficult and can be done by farmers who do not usually cultivate freshwater fish. The right family member is empowered to improve the family economy through the cultivation of catfish is the farmer's wife. Farmer’s wives in Limau Gadang Nagari tend not to improve the family economy, they play the role of taking care of children, doing housework and sometimes delivering food to the fields and to the fields. The farmer’s wife activity is only fulfilling the wife's obligation to husband in married life. Farmers' wives are economically unproductive in improving the family economy. The goal to be achieved in this research is for the wife of farmers can contribute to improve the family economy. Specific targets to be achieved in this study is the wife of skilled farmers cultivate catfish, Nagari Limau Gadang population increases their living standards and TNKS in Nagari Limau Gadang free from the pressure of the population. How to research, selected 20 poor farmer's wife then trained to make ponds and pellets. The pools made are the main pond, spawning pond, nursery pool and pond enlargement. Pellet made from raw trash fish, quail feces, fine bran and cassava. The pellet formulation is made of 4 kinds. Each formulation produces a quality pellet. Based on laboratory test produced pellet contains very good nutrition for enlargement catfish. The nutritional range of protein is 21,79%-34,60%, fat is 1,95%-2,32% and carbohydrate is 26,55%-39,65%. The farmer's wife understands and skillfully creates ponds and pellets. Pellet made from raw materials trash fish, quail feces, fine bran and cassava can be used as raw material pellet. Keyword: cultivation, catfish, farmer's wife, income, family.

Inventory of Drug Plant In Estuary Village Siberut District Siberut Southregency of Mentawai Islands Des M; Gustina Indriati; Swandi Sakerengan
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Traditional treatment is something that can not be separated from the life of the Mentawai people, especially the village of Muara Siberut South Siberut District since been entrenched in people's lives. The shift in value to knowledge about medicinal plants is beginning to be felt increasingly minimal, especially in the younger generation. This study aims to inventory medicinal plants as well as properties and how to use them, in the hamlet of Puro and Peigu hamlet, village of Muara Siberut District of South Siberut. The research was conducted by using Survey method and interview. The results of the study found 95 species of medicinal plants from 37 families are used to treat 39 kinds of diseases. The most common species found in the Zingiberaceae family are 12 species, F. Euphorbiaceae 9 species, F.Graminae and F.Compositae 8 species, F.Araceae, F.Acanthaceae, F.Orchidaceae, F.Piperaceae, and F.Rubiaceae respectively. each 4 species. For other families each 3 types, 2 types and 1 type. Of the 95 species of plants are 23 species have been cultivated in the yard of houses, and 72 species found wild in the yard and in the forest. In its use 65 species are used in singular form and 30 species are used in the form of herbs. It can be concluded that medicinal plants in Puro and Peigu hamlets are dominated by familia Zingiberaceae, familia Euphorbiaceae, familia Graminae and familia Compositae.Keywords: Inventory, Medicinal plants, Puro hamlet, Peigu hamlet, South Siberut

Leaf Area and Stomata Index of Rice Plants (Oryza sativa L.) Cisokan and Batang Piaman Varieties to Drought Stress Putri Widianti; Violita Violita; Moralita Chatri
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Background and objective.The response of rice plants to drought stress was preceded by physiological response in the form of reduction of transpiration rate to reduce water loss by closing stomata, reducing stomata, and decreasing leaf surface area by leaf rolling. Therefore, it is necessary to research the morphological character and physiological character of plants such as leaf area analysis and stomata index to find out their response to drought stress and without drought. Based on this, this research is aimed to know the area and index of stemata leaves of rice plants (Oryza sativa L.) varieties of Cisokan and Batang Piaman due to drought stress.Methodology. Drought treatment was performed by withholding water for 12 days in greenhouse.Data were taken destructively on days 0, 4, 6 and 12 after treatment. Result. Drought stress had an effect on decreasing leaf area and stomata index on both varieties. The lowest leaf area is found in Cisokan variety. Likewise with the stomata index, the lowest yield after 12 days of treatment was found in the Cisokan variety. Low leaf area and stomatal index are known to be more resistant to drought because they can reduce the rate of transpiration in plants. Keywords: Drouhgt stress, Leaf Area, Stomata index

The Extract of Tristania Sumatrana Miq. to Lower Primary, Secondary and Tertiary Follicles in Swiss Webster Mice Syamsurizal Syamsurizal; Arief Muttaqiin
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

The use of traditional medicinal plants is generally based on empirical experience; therefore, a scientific approach is needed to bring traditional medicine into the practice of medicine and formal health services. Tristania sumatrana Miq. is one of the traditional medicinal plants that are often used as contraceptives for women in the villages of Lembah Bawan and Kampung Dalam (West Sumatra). The extract of Tristania sumatrana Miq. can extend the estrus cycle of Mus musculus into eleven days. The purpose of this research is to know the effect of Tristania sumatrana Miq. extract to the fertility of female mice. The experiments were conducted with a randomized 5x2 group design. Five dosage groups: untreated control, placebo, treatment with doses 600, 900 and 1200 mg/kgbw and two treatment groups: 10 and 20 days. The fertility parameters studied were ovarian weight, number of primary, secondary, tertiary follicles. The results prove the extract of Tristania sumatrana Miq. causing a very significant decrease in ovarian weight (treatment of 900 mg/kg bb for 10 days), number of primary and secondary follicles (1200 mg / kg bb for 10 days), and tertiary (600 mg / kg bb for 20 days). The extract of Tristania sumatrana Miq. causing a decline in Mus musculus fertility.

Ethnobotani Study on Mangrove Forests in Padang City and Pariaman City Irma - Leilani; Rizki Rizki; Tuti M Sari; Dian M. Sari
Bioscience Vol 1, No 2 (2017): Biology
Publisher : UNIVERSITAS NEGERI PADANG

There are many benefit especially for the society who live around mangrove area. The purpose of this study is to find out the species of mangrove that used by the society in Teluk Buo Padang and in Mangguang, Pariaman. This research was conducted on Mei 2012 till June 2013. This study used survey method with direct observation to the field. interviews conducted to determine the utilization of mangrove species for the surrounding community. There were 43 people in Pariaman and 33 people in Padang have been selected as the respondent. The interview aims to find out the species of mangroves that are used as medicinal plants, for foods or other benefits and how to used it. In Pariaman we found 19 species, 10 species are medicinal plants, 3 can be eaten and 18 species are used for other things. In Padang we found 17 species, 11 of them are medicinal plants, 3 can be eaten, 15 species are used for other things. Some species have many benefits by people around the mangrove forest Key words: Benefit, mangrove, Pariaman, Padang

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