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The Quality Characteristics and Microbiological of Simple Preprocessed Foods Vege-ball with Guava Leaf Powder for Soup during Storage  

Park, Ji Hyun (Dept. of Food and Nutrition, Chung-Ang University)
Baek, Ok-Hee (DIMI)
Publication Information
Journal of the East Asian Society of Dietary Life / v.22, no.5, 2012 , pp. 585-592 More about this Journal
Abstract
This study was to investigate the quality characteristics and microbiological of simple preprocessed foods vege-ball with guava leaf powder (VB) for soup during storage at $4^{\circ}C$ and preparation of standard recipe. Lightness was increased during storage, but yellowness and redness were no significantly differences during storage, except for control. Hardness of VB increased with increasing guava leaves powder springness, cohesiveness significantly as a powder addition guava leaves was lower. DPPH, ABTS compared to the control showed higher levels in VB with increasing amounts significantly increased antioxidant activity (p<0.05). According to the sensory evaluation, VB 0.1% showed higher score in term of taste, flavor, overall preference. All the VB samples showed significantly lower values for acid, peroxide and than the control. Low level of total aerobic bacteria was detected during storage (<5.00 log CFU/g). Coliforms and yeast & mold were not detected during storage in VB samples. In conclusion, the addition of 0.1% with guava leaves powder would be useful way to enhance the anitoxidant quality and sensory characteristics of preprocessed food. The estimated storage was 8 days at $4^{\circ}C$.
Keywords
Simple preprocessed foods; vege-ball; soup; guava leaves; microbiological and quality characteristics;
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