Bagasse is a solid waste from the sugar cane milling process in the sugar industry. Bagasse contains lignin, cellulose and hemicellulose, which through the fermentation process by Phanerochaete chrysosporium can produce crude cellulase, furthermore cellulase and other enzymes can be used in bagasse fermentation to produce bioethanol. The purpose of this study was to determine the effect of fermentation time and the addition of crude cellulase to the yield and concentration of bioethanol produced in bagasse fermentation. The research was carried out with the stages of the process: Preparation of raw materials (bagasse), Preparation of crude cellulase, Fermentation process, Product analysis (Bioethanol). The variables used in the experiment were fermentation time (96, 120, and 144 hours) and the addition of crude cellulase (10%, 20%, 30%, 40%, and 50% (v/v)). Analysis of crude cellulase activity using the DNS method, while the analysis of bioethanol concentration using the chromatography methods. The results showed that the maximum yield was 16.24% and the highest bioethanol concentration of 11.04% was obtained at the time of fermentation of 144 hours and the addition of crude cellulase by 50% (v/v).
In this digital era, Indonesian people are required to have innovation and continue to make changes so that all wealth in Indonesia is not recognized by other countries. So, we need to build the value of tolerance considering that the social conditions of the multicultural Indonesian society have an impact where people often experience discriminatory actions, one of which is gender discrimination. Method: The methodology of this study is use of a qualitative survey and interview with students from any university in Indonesia. The population of this study is students from any university in Indonesia. The sample of this study is 45 students from 15-22 years old. Result: The results showed that on average, college students only knew enough about gender discrimination and most college students still found gender discrimination but had never experienced it. Recommendation: The authors suggests that further activities, students can continue to analyze and think of other effective actions to make people fully aware regarding gender discrimination in digital era. Limitation: The limitation of this study is this study has a limited time of research and difficult in conducting the research recall that we are on pandemic which makes the result of the research process is in delay.
Keywords: gender discrimination, digital era, awareness
Macrozoobenthos is an organism that lives on the surface or in liquid sediment. Macrozoobenthos is one of the most important organisms for marine and coastal ecosystems. This study aimed to determine the value of the community structure of macrozoobenthos existing in Mangrove Center Bengkak, a subdistrict of Wongsorejo, Banyuwangi regency. Sampling was conducted on three stations with different location characteristics. The community structure was measured by Shannon’s diversity index, Equitability index, and dominance index. The results of this study obtained Shannon’s diversity index of 0.51, equitability index of 0.12, and dominance index of 0.76 at Station 1. At station 2, Shannon’s diversity index of 1.19, equitability index of 0.39, and dominance index of 0.36. While at station 3, it was obtained that Shannon’s diversity index of 1.64, equitability index of 0.85, and dominance index of 0.31.
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