Susceptibility of carp and tilapia α-amylase to purified wheat amylase inhibitor

Natarajan, M.; Ross, Barry C.; Ross, Liñdsay G.

doi:10.1016/0044-8486(92)90153-c

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…Inhibitors are very useful to discern among different types of amylases (45). On the other hand, as calcium has been described as essential for a-amylases stability (24,(42)(43)(44), the effect of several inhibitors has been studied in the presence and absence of this metal.…”

Section: Discussionmentioning

confidence: 99%

Digestive enzymes in marine species. II. Amylase activities in gut from seabream (Sparus aurata), turbot (Scophthalmus maximus) and redfish (Sebastes mentella)

Munilla-Morán

Saborido-Rey

1996

Comparative Biochemistry and Physiology Part B: Biochemistry an

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The amylase activity of the digestive tract of three carnivorous fish species (Sparus aurata, Scophtalmus maximus and Sebastes mentella) has been studied. The activity of seabream and turbot showed its maximum at neutral pH (7.0-7.5); meanwhile, the activity of redfish had an optimum pH at 4.5-5.0. The tº function ranged between 35 and 45°C for the three species. The Arrhenius plots of the intestinal activities of seabream and turbot showed breakpoints at temperatures close to those of their physiological activities. High saline concentrations inhibited the activity of seabream and turbot and activated the activity of redfish. Seabream activity was absolutely dependent on calcium ions. On the contrary, redfish activity was only detected in the absence of this metal. Studies carried out by using several effecters suggested that the activities found in these three species are different. Considering our results from a point of view of the environmental conditions of these species, it might be concluded that enzymatic digestion of dietary carbohydrates proceeds at very low rate. Physiological implications are discussed.

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Section: Discussionmentioning

confidence: 99%

Digestive enzymes in marine species. II. Amylase activities in gut from seabream (Sparus aurata), turbot (Scophthalmus maximus) and redfish (Sebastes mentella)

Munilla-Morán

Saborido-Rey

1996

Comparative Biochemistry and Physiology Part B: Biochemistry an

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“…With regard to digestive losses, the ADC values for native wheat starch were relatively high (80-90%). From in vitro studies, NATARAJAN et al (1992) suggested that digestive amylases of tilapia were sensitive to amylase inhibitors from wheat. Under in vzvo conditions, incorporation of native wheat starch in the diets does not, however, seem to affect the availability of starch.…”

Section: Discussionmentioning

confidence: 99%

Protein and energy needs for maintenance and growth of Nile tilapia (Oreochromis niloticus)

et al. 1995

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A trial was undertaken with juvenile Nile tilapia fed graded levels of dietary protein (C-35% DP) over 7 weeks (28 "C). Measurements of nitrogen and energy utilization were made using data on ADC, comparative carcass analyses, nitrogen excretion and oxygen uptake. Data indicate that the daily rotein intake for maximum N gain was c. 12 g/k /d and the maintenance rotein requirements were ,gout of 2 g/kg/d. The optimal DP/DE ratio was found to be 18 mg/kJ. Differences were observed in the data on endogenous nitrogen and energy utilization depending on the dietary treatments as well as on the criteria used.

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“…Studies of effects o and Natarajan et al (1992) have shown that an inhibitor from wheat is active against amylase from sea bream, carp and tilapia. Also, salmonid and cod amylase may be affected b an inhibitor from beans as seen with amylase from Atlantic salmon (Froystad et al, 2006).…”

mentioning

confidence: 99%

Criteria for Safe Use of Plant Ingredients in Diets for Aquacultured Fish

Hemre

Amlund

Aursand

et al. 2018

EJNFS

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Susceptibility of carp and tilapia α-amylase to purified wheat amylase inhibitor

Cited by 9 publications

References 13 publications

Digestive enzymes in marine species. II. Amylase activities in gut from seabream (Sparus aurata), turbot (Scophthalmus maximus) and redfish (Sebastes mentella)

Digestive enzymes in marine species. II. Amylase activities in gut from seabream (Sparus aurata), turbot (Scophthalmus maximus) and redfish (Sebastes mentella)

Protein and energy needs for maintenance and growth of Nile tilapia (Oreochromis niloticus)

Criteria for Safe Use of Plant Ingredients in Diets for Aquacultured Fish

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