酿酒酵母菌质量变化和发酵时间对同时糖化和发酵棕榈淀粉固体废弃物生产生物乙醇的影响

Nurul Putri Gayatri, Dewi Astuti Herawati
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摘要

本研究旨在确定酵母质量变化对酿酒酵母(面包酵母)的影响,并确定糖棕榈淀粉固体废物发酵生物乙醇的最佳时间。发酵过程中使用酵母量的变化:0.8 g / 100ml;1.6 g / 100ml, 2.4 g / 100ml, 3.2 g / 100ml,发酵时间从开始发酵至第7天。本研究采用同步糖化发酵法,即水解和发酵过程同时进行。用黑曲霉和木霉混合酶水解,用酵母发酵。结果表明,酵母质量为3.2 g / 100ml时,生物乙醇含量最高,为4.7868%,发酵最佳时间为4 d。摘要/ abstract摘要:酿酒酵母(ragi roti)和酿酒酵母(ragi roti)在发酵生物乙醇的过程中具有良好的发酵效果。发酵孟古纳干、马尾草、马尾草:马尾草0、8 g/100ml;1、6 g/100ml, 2、4 g/100ml, 3、2 g/100ml丹瓦克图发酵茶图:阿瓦克图发酵茶图、阿瓦克图发酵茶图、阿瓦克图发酵茶图、阿瓦克图发酵茶图、阿瓦克图发酵茶图、阿瓦克图发酵茶图。黑曲霉和发酵木霉。哈西尔汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗汗。
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The Effect of Saccharomyces cerevisiae Mass Variation and Time of Fermentation on Bioethanol production from Solid Waste of Palm Starch Using Simultaneous of Saccarification and Fermentation Methods
This study aims to determine the effect of mass variation of Saccharomyces cerevisiae (baker's yeast) and determine the optimum time required for the bioethanol fermentation process from solid waste of sugar palm starch. The fermentation process uses variations in yeast mass : 0.8 g / 100ml; 1.6 g / 100ml, 2.4 g / 100ml, 3.2 g / 100ml and fermentation time from start fermentation until the 7th days. This study uses the Simultaneous of Saccarification and Fermentation method, which is a combination of hydrolysis and fermentation processes simultaneously. Hydrolysis using a mixture of enzymes from Aspergillus niger and Trichoderma sp and fermentation using yeast. The results showed that the mass of Saccharomyces cerevisiae 3.2 g / 100ml produced the highest bioethanol content of 4.7868% and the optimum time required for the fermentation process was 4 days. AbstrakPenelitian ini bertujuan mengetahui pengaruh variasi massa Saccharomyces cerevisiae (ragi roti) dan menentukan waktu optimum yang diperlukan untuk proses fermentasi bioetanol dari  limbah padat pati aren. Proses fermentasi menggunakan variasi massa ragi yaitu: ragi 0,8 g/100ml; 1,6 g/100ml, 2,4 g/100ml,  3,2 g/100ml  dan waktu fermentasi yaitu: awal fermentasi sampai hari ke 7enelitian ini menggunakan metode Simultaneous of Saccarification and Fermentation adalah gabungan proses hidrolisis  dan fermentasi secara serempak.Hidrolisis menggunakan campuran enzim dari Aspergillus niger dan Trichoderma sp dan fermentasi menggunakan ragi. Hasil penelitian menunjukkan bahwa massa Saccharomyces cerevisiae 3,2 g/100ml  menghasilkan kadar bioetanol paling tinggi 4,7868% dan waktu optimum yang diperlukan untuk proses fermentasi adalah 4 hari.
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