USE OF NATURAL PLANT EXTRACTS IN BATTER COATING OF SHRIMP AND THEIR EFFECTS ON THE QUALITY OF SHRIMP DURING FROZEN STORAGE


Yerlikaya P., GÖKOĞLU N., TOPUZ O. K.

JOURNAL OF FOOD PROCESSING AND PRESERVATION, cilt.34, sa.1, ss.127-138, 2010 (SCI-Expanded) identifier identifier

Özet

Commercial extracts of garlic, tomato and grape seed were separately added into batter coating formulation. Quality changes of coated shrimps were investigated during frozen storage. Samples with added extracts had higher pH values than the control group. Higher total volatile basic nitrogen value was found in the sample with tomato extract compared with extract containing garlic and grape seed extracts. The lowest trimethylamine concentration was found in the sample containing garlic extract. Although the most effective extract in retarding oxidation was grape seed extract, garlic extract had protective effect against spoilage. The lowest scores for sensory appearance, odor and taste were found in samples with grape seed extract. It was concluded that use of plant extracts in the coating mixture affected the quality of shrimp during frozen storage. It was also found that the sample with garlic extract was the best product in terms of sensory characteristics.