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METAMORFOSA Journal of Biological Sciences
Published by Universitas Udayana
ISSN : 23025697     EISSN : 26558122     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology
METAMORFOSA is an electronic scientific journal published periodically by the Master of Biology Udayana University, which includes scientific works in the field of Biology.
Arjuna Subject : -
Articles 22 Documents
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Search results for , issue "Vol 9 No 1 (2022)" : 22 Documents clear
Carbon Estimation of Cocoa Stands (Theobroma cacao L.) in Agroforestry Area Sumberrejo Village, Pagak, Malang Regency Rukun Rahayu; Luchman Hakim; Ari Hayati
Metamorfosa: Journal of Biological Sciences Vol 9 No 1 (2022)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2022.v09.i01.p16

Abstract

ABSTRACT Conversion of forest areas to plantations can cause problems with decreasing soil fertility, erosion, extinction of flora and fauna, drought, flooding and even changes in the global environment. This problem will increase from time to time in line with the large area of ??forest being used as business land because it can reduce the absorption of carbon emissions through photosynthesis. The application of the concept of agroforestry is to increase carbon sequestration in the air in efforts to mitigate climate change. The objectives of this study were to: (1) determine the differences in physical characteristics of cacao varieties (Theobroma cacao. L), (2) carbon potential and (3) abiotic factors at the observation location of agroforestry fields. This research method is descriptive observation to determine the differences in the characteristics of brown varieties by knowing the physical characters, fruit color, and seed color, then purposive sampling. To determine the potential for carbon, analysis was carried out on 120 samples of brown tree stands in two agroforestry gardens, namely the diameter of the biomass using the allometric formula and observing the abiotic factors using appropriate tools when in the field. The results of biomass observation were 3 varieties of cacao, namely criollo with 26 kg / tree, forastero 28 kg / tree, and trinitario 32.4 kg / tree, the average litter was 0.02 kg / m2, the distribution of shade was obtained 30 species. Abiotic factors include temperature, 28-29 ° C, altitude 344-348 m asl, wind speed 0.3-1.6, light intensity 766-1008 lux, soil pH, 6.4-7.2, soil moisture 61-70%, and rainfall 200- 400 mm was rated the ideal criteria based on the literature. Keywords: conversion, agroforestry, biomass, varieties
Potensi Bakteri Sebagai Biodegradasi Lemak Dan Minyak Pada Lingkungan Yang Tercemar Limbah Domestik Retno Kawuri; Ida Bagus Gede Darmayasa
Metamorfosa: Journal of Biological Sciences Vol 9 No 1 (2022)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2022.v09.i01.p18

Abstract

The contamination of waste oil and grease to the aquatic environment from industrial food processing, restaurants and kitchens or by accidental oil spills is increasingly being found. Biodegradation using a consortium of bacteria can be an effective way to overcome this. The aim of this research was to isolate and identify bacterial strains from waste oil and grease that are capable of biodegradation and the potential of degrading bacteria to degrade oil and grease in vitro. Samples were taken from waste oils and fats. Enrichment techniques were carried out for all samples followed by isolation of bacterial strains to determine which strains could degrade oil and fat in vitro. Identification of bacteria using the identification kit BBL Crystal System. The total bacteria count was carried out using the dilution method. The results showed that there were 3 strains of oil and fat degrading bacteria, namely Bacillus licheneformis, Bacillus coagulant and Psedomonas diminuta. The consortium of the three types of bacteria was able to degrade waste oil and fat with a total of 624x105 CFU / ml to 816x105 CFU / ml bacteria with a control without the addition of a bacterial consortium which was 56x101 CFU / ml. The total bacteria in various treatment wastes with a consortium of bacteria based on molasses in the invitro test showed the ability to live and develop from a fairly high bacterial consortium, namely 292x104 CFU / ml to 904x104 CFU / ml. The bacteria found had the ability to degrade working oils and fats. synergistically. The benefit of this research is that bacteria that have been found can be used as a starter for processing waste fats and oils in environments contaminated with domestic waste fats and oils.

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