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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : A Study of Optimal Conditions for Reducing Sugars Production
from Cassava Peels by Diluted Acid and Enzymes) ผู้เขียน: Kanlaya Yoonan, Jirasak Kongkiattikajorn สื่อสิ่งพิมพ์:pdf AbstractCassava peels were dried and milled into small pieces. 1.5%(w/v)Cassava peel was hydrolysed
by 0.1 M sulfuric acid at 135?C under pressure 15 lb/inch2 for 90 min producing 66.28%yield of reducing
sugars while 0.025 M hydrochloric acid produced 63.29% yield of reducing sugars under the same
conditions. Hydrolysis by 0.25 M acetic acid could produce 30.36% yield of reducing sugars under
the same conditions. Enzymatic hydrolysis of 1.5% cassava peels by a-amylase at pH 6.0, 90?C for 2 hr
produced 40.79% yield of reducing sugars. After that, the reaction mixture was continuously hydrolysed
by amyloglucosidase at pH 4.0, 50?C for 24 hr, which produced 70.11% yield of reducing sugars.
Hydrolysis of 1.5% cassava peel by cellulase under optimal condition at pH 5.0, 50?C for 24 hr produced
43.39% yield of reducing sugars. Hydrolysis of 1.5% cassava peels by xylanase under optimal conditions
at pH 4.0, 50?C for 9 hr produced 2.64% yield of reducing sugars while hydrolysis by pectinase under
optimal condition at pH 5.0, 40?C for 3 hr produced 9.01% yield of reducing sugars. From this study, it
was shown that cassava peels could produce reducing sugars by dilute acid hydrolysis and that several
enzymes digestion. |
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ที่มา:การประชุมวิชาการ ครั้งที่ 47 มหาวิทยาลัยเกษตรศาสตร์หัวเรื่อง:ศึกษาสภาวะที่เหมาะสมในการหมักไวน์ขิงโดยเชื้อ Saccharomyces cerevisiae TISTR 5018 |
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