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Journal of Bioresources and Environmental Sciences
Published by Universitas Diponegoro
ISSN : 28298314     EISSN : 28297741     DOI : https://doi.org/10.14710/jbes.xxx.xxx
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science
The Journal of Bioresources and Environmental Sciences (p-ISSN: 2829-8314; e-ISSN: 2829-7741) co-published by the Center of Biomass and Renewable Energy (CBIORE) aims to foster interdisciplinary communication and promote understanding of significant bioresources and environmental issues. The journal seeks to promote research on all aspects pertaining to the identification, utilization, and conversion of bioresources into bioproducts and their impacts on the environment including the fate and behavior of emerging contaminants, bioresources utilization impact on the environment, human activity to environmental contaminants and their health effects, and environmental remediation and management. The journal publishes original articles, reviews, commentary, methods, case reports, and opinions that are of high quality, high interest, and far-reaching consequence.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ekologi
Articles 5 Documents
 1 
Search results for , issue "Vol 1, No 3 (2022): December 2022" : 5 Documents clear
Color Evaluation of Dry Vermicelli Made from Combination of Arenga Starch, Rice Flour and Sorghum Febiani Dwi Utari; Ririn Puji Hastuti; Setia Budi Sasongko; Mohamad Djaeni
Journal of Bioresources and Environmental Sciences Vol 1, No 3 (2022): December 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbes.2022.15180

Abstract

In Indonesia, vermicelli is usually produced using arenga starch. But the arenga starch has limited in the term of quantity and the nutritional quality. In order to improve the arenga starch vermicelli, the formulation was combined with rice flour and sorghum. Each single change in vermicelli formulation will be modifies the final product color. This research studied the effect of vermicelli formulation on the color change of dry vermicelli. During the production of vermicelli, arenga starch was mixed with 10-90% of rice flour. The color parameter was observed as L* (lightness), a* (redness and greenness), and b* (yellowness and blueness). The total color difference was also calculated. The procedure was repeated with addition of sorghum. Result showed that the addition of rice flour increased the L* value. Meanwhile, the addition of sorghum decreased the L* value. Total color difference was higher in addition of sorghum.
The Effect of NaHCO3 and Mg2+ Addition in Haematococcus pluvialis Cultivation by Carbon Injection Method W. Widayat; Annisa Metantya Maharani; Siti Nur Khairunisa Aroli; Muhammad Hilmazar Hawari
Journal of Bioresources and Environmental Sciences Vol 1, No 3 (2022): December 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbes.2022.15220

Abstract

The emission of carbon dioxide has been continuously rising year by year. Many efforts that have been used with aim of climate recovery, such as capturing CO2 with the Carbon Capture Storage (CCS) method, which is the CCS technology is one of the effective tactics for reducing carbon emissions by utilizing energy from biomass of microalgae. This research will discuss about carbon capture using microalgae Haematococcus pluvialis in a lab scale photobioreactor (PBR), and resulting the optimum biomass productivity for Haematococcus pluvialis has occurred in the H2 variable (50 ppm Mg2+). This happens because of addition of Mg ions above 50 ppm can decrease the yield of biomass productivity, since Haematococcus pluvialis cannot live in high salinity concentrations. Further research should make a calculation of optimal cost incurred at the optimal carbon concentration that can be captured by microalgae, also the results of increasing value of the microalgae biomass produced for the comprehensive use of the microalgae.
Study of Water Quality of Kedung Jumbleng River As A Liquid Waste Disposal of Tofu Industry and Community Behavior of The People in Krajan, Mojosongo, Surakarta Primadi Gayuh Laksono Putro; H. Hadiyanto
Journal of Bioresources and Environmental Sciences Vol 1, No 3 (2022): December 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbes.2022.15451

Abstract

This study examines the water quality of the Kedung Jumbleng River which is used as a tofu liquid waste disposal site and the behavior of the surrounding community which aims to find out how the water quality of the Kedung Jumbleng River is, community behavior, and steps to control pollution. The study was identified through literature searches or field observations formulated in research questions: (1) How is the water quality of the KedungJumbleng river? ; (2) How is the behavior of the people in Krajan Mojosongo, Surakarta and (3) What are the steps to control pollution. This study is a descriptive mix method with a sequential explanatory design approach, and uses research data collection methods with field surveys and mapping and laboratory tests with parameters such as temperature, pH, BOD, COD, DO, TSS, and NH3. The sampling technique used was purposive sampling. The analysis used to determine water quality is the Pollution Index method. Descriptive analysis method is used to determine people's behavior in terms of knowledge, attitudes and actions. The results showed that the water quality of the Kedung Jumbleng river exceeded the quality standard in several water quality parameters. Pollution Index value for all classes of moderately polluted water. The results of the analysis of community behavior showed that the behavior of the people around the Kedung Jumbleng river had knowledge aspects of 55.1% High, 42.9% Enough, and only 2% had low knowledge. Attitude aspects 26.6% Good, 69.4% Fairly Good, and 4% Bad. Aspects of action 53% Good and 47% Poor. Based on the interpretation of the research results, it can be concluded that: (1) The water quality of the Kedung Jumbleng river is currently moderately polluted; (2) The behavior of the community in Krajan Mojosongo Surakarta is quite good in terms of the value of the aspects of knowledge, attitudes and actions.
Evaluation of Total Hardness and Qualitative Analysis of Boiler Water at the Food Jam Industry, Tangerang, Indonesia Satrio Kuntolaksono; Imam Wicaksono; Febrianty Emilia; Enjarlis Enjarlis; Linda Aliffia Yoshi
Journal of Bioresources and Environmental Sciences Vol 1, No 3 (2022): December 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbes.2022.15826

Abstract

Food industry is one of the most crucial and rapidly growing economic sectors in Indonesia. One of the examples is the food jam industry. This industry was located in Tangerang, Indonesia. The majority of the food jam industry uses its own source of water, so this part is also important to water producers in Indonesia. Water used in the food jam industry should meet the requirements of at least drinking water quality, so the factories need to treat the water. Good quality water is water that requires good physical, chemical, and bacteriology properties. Hard water is a term known for water that contains a high concentration of minerals such as Calcium (Ca) and Mag-nesium (Mg). Moreover, water with very high degrees of hardness is harmful to health. In this study, we want to evaluate and determine the pH, total hardness, and total dissolved solids (TDS) at three different times namely morning, midday, and afternoon. The results obtained in the range of pH analysis are 6.98 to 7.99 with all cover times. The total hardness in the boiler water and the TDS are around 252.6 to 388.2 mg/L and 310 to 406 mg/L, respectively. These results indicated that it has fulfilled the requirements for total hardness values under the Minister of Health Regulations (Permenkes) No. 492/Menkes/Per/IV/2010.
Optimization of The Durian Peel Waste Adsorbent in The Purification of Used Cooking Oil Sri Yatmani; Satrio Kuntolaksono; Indri Sivtiani; Windi Novitasari; Ulfah Khairiyyah Luthfiyani
Journal of Bioresources and Environmental Sciences Vol 1, No 3 (2022): December 2022
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbes.2022.16356

Abstract

Durian peel waste (Durio zibethinus Murray) is not effectively exploited and even left to become rubbish, which pollutes the environment. The cellulose from durian peel can be used to generate absorbent activated carbon. This study improves the durian peel adsorbent for the purification of used cooking oil. Carbon activation expands the pores of activated carbon, increasing its surface area and adsorption capacities for purifying spent cooking oil. The best conditions for producing adsorbents from durian peel were identified by adjusting the carbonization period between 300, 400, and 500 °C, activating the 1.25 m mesh size with HCl and KOH activators at concentrations of 3 M and 4 M, and soaking the material for 24 hours. Using 4 M HCl activator, 24 hours at 400 °C, and SNI 06-3730- 1995 criteria, the ideal conditions for activating durian peel activated carbon in the purification of wasted cooking oil were achieved. SEM at 1000-fold magnification (1.357 mm) confirmed an even surface and successful absorption. Durian peel adsorption in the purification of wasted cooking oil reduced peroxides (30.26%), free fatty acids (57.14%), and water content (45%), clarifying the color of leftover cooking oil.

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