Effect of native and modified starches on nutritional and physiological performance of wild juveniles of red grouper (Epinephelus morio)

Autor:	Gerard Cuzon, Leticia Callejas, Carlos Alfonso Álvarez-González, Carlos Eduardo Maldonado, Ana Ruth Escoto Castillo, Martha Gabriela Gaxiola-Cortés
Rok vydání:	2018
Předmět:	chemistry.chemical_compound Hexokinase Glycolytic enzymes Glycogen biology Chemistry Glucokinase Grouper Food science Carbohydrate Epinephelus biology.organism_classification Potato starch
Zdroj:	Ecosistemas y Recursos Agropecuarios. 5:491-500
ISSN:	2007-901X 2007-9028
DOI:	10.19136/era.a5n15.1548
Popis:	The aim of this study was to evaluate carbohydratesutilization by wild red grouper Epinephelus morio.Juveniles were fed during 93 d on a selection of starches: native raw cornstarch (RCS), waxy cornstarch (WCS), raw potato starch (RPS) and gelatinized potato starch (GP) at 20% inclusion level. The best growth was obtained in fish fed cornstarch either native raw of waxy cornstarch (p0.05), whereas glycogen content increased up to 200 mg g-1with waxy cornstarch. Specific activity of a-glucosidase and α-amylase remained stable (p>0.05). Hepatic glycolytic enzymes increased with raw native and waxy cornstarch (p0.05). Hexokinase (HK1) and glucokinase (GK) varied according to carbohydrate source: values were higher with cornstarches than potato starches (p0.05). In final, the low size of granules from cornstarch favored the assimilation in liver of wild juveniles red grouper.
Databáze:	OpenAIRE
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