Carbohydrate digestion in Pecten maximus

J. R. Stark, R. S. Walker

Research output: Contribution to journalArticle

Abstract

1. 1. A survey of the carbohydrates present in the digestive tract of Pecten maximus (L.) indicated that the highest enzyme activity occurs in the digestive diverticula. 2. 2. A wide range of di- and tri-saccharides were hydrolysed including cellobiose, sucrose, lactose, maltose, maltotriose and raffinose. 3. 3. The polysaccharides glycogen, starch and laminarin were hydrolysed rapidly but alginic acid, inulin, xylan and chitin were unattacked. Cellulose and pectin were hydrolysed slowly. 4. 4. Fractionation of extracts of the digestive diverticula by chromatofocusing indicated the presence of two ß-glucosidases, two a-glucosidases and four enzymes capable of hydrolysing laminarin. 5. 5. The starch hydrolysing enzyme was characterised as an a-amylase. © 1983.

Original languageEnglish
Pages (from-to)173-177
Number of pages5
JournalComparative Biochemistry and Physiology Part B: Comparative Biochemistry
Volume76
Issue number1
Publication statusPublished - 1983

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Pecten maximus
glucosidases
diverticulum
digestion
carbohydrates
starch
maltotriose
cellobiose
xylan
raffinose
inulin
alginates
maltose
chitin
enzymes
amylases
digestive tract
pectins
glycogen
lactose

Cite this

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abstract = "1. 1. A survey of the carbohydrates present in the digestive tract of Pecten maximus (L.) indicated that the highest enzyme activity occurs in the digestive diverticula. 2. 2. A wide range of di- and tri-saccharides were hydrolysed including cellobiose, sucrose, lactose, maltose, maltotriose and raffinose. 3. 3. The polysaccharides glycogen, starch and laminarin were hydrolysed rapidly but alginic acid, inulin, xylan and chitin were unattacked. Cellulose and pectin were hydrolysed slowly. 4. 4. Fractionation of extracts of the digestive diverticula by chromatofocusing indicated the presence of two {\ss}-glucosidases, two a-glucosidases and four enzymes capable of hydrolysing laminarin. 5. 5. The starch hydrolysing enzyme was characterised as an a-amylase. {\circledC} 1983.",
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Carbohydrate digestion in Pecten maximus. / Stark, J. R.; Walker, R. S.

In: Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, Vol. 76, No. 1, 1983, p. 173-177.

Research output: Contribution to journalArticle

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