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논문 기본 정보

자료유형
학술저널
저자정보
Dupe Temilade Otolowo (University of Ibadan) Abiodun Adekunle Olapade (University of Ibadan) Solomon Akinremi Makanjuola (Federal University of Technology)
저널정보
한국식품영양과학회 Preventive Nutrition and Food Science Preventive Nutrition and Food Science Vol.23 No.4
발행연도
2018.12
수록면
347 - 355 (9page)
DOI
10.3746/pnf.2018.23.4.347

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Catfish (Clarias gariepinus), the most popular fish species cultivated in Nigeria is rich in nutrients but highly perishable thus, it requires processing for preservation. In order to determine the optimal dehydration parameters, the combined effects of brine concentration [3.0, 6.0, and 9.0% (w/v)], brining time (30, 60, and 90 min), and drying temperature (90, 110, and 130℃) were investigated to predict the nutritional and rancidity properties of the dehydrated catfish using response surface methodology (RSM). The study showed that brine concentration, drying temperature, and the interaction of brine concentration and brining time significantly (P<0.05) influenced the nutritional and rancidity properties of dehydrated catfish. However, the optimal process parameters: 7.83% brine, 90 min, and 110.38℃ produced dehydrated catfish of high protein content (60%), low moisture (6.0%), free fatty acid (1.2%), thiobarbituric acid (0.10 mg malondialdehyde/kg), and total volatile nitrogen (10.0 mg nitrogen/100 g) with no detectable levels of peroxide value, indicating good nutritional quality and lower lipid oxidation for shelf stability. RSM models with a high range of predictive R<SUP>2</SUP> (77∼88%) were obtained at the set conditions showing the RSM potential as a feasible tool in this regard. The dehydration technique employed in this study is effective for high nutrient retention, especially the protein content, which could ameliorate the problem of malnutrition especially where fresh fish is not accessible, simple in operation and economical to encourage commercial applications with a potential for food security.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
REFERENCES

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