|Table of Contents|

Optimization of Refrigeration Formulation for Early Mature Yam Fresh Keeping

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年12
Page:
100-107
Research Field:
Publishing date:

Info

Title:
Optimization of Refrigeration Formulation for Early Mature Yam Fresh Keeping
Author(s):
XIE Dongdi; WU Wanwei; SONG Mubo; WEI Xiaoping; LI Fuyun
(Department of Food and Biological Engineer，Hezhou University，Hezhou，Guangxi 542899)
Keywords:
early mature yam; preservation; formulation; orthogonal optimization
PACS:
-
DOI:
10.11937/bfyy.20184158
Abstract:
Early mature yam variety ‘Guihuai No.6’ was taken as material.Formula 1 of nisin，EDTA and nano-TiO2，formula 2 of nisin，EDTA，ferulic acid (FA)，were set.Under cold temperature（10±1）℃，the decay index，browning degree (BD) and total soluble solids (TSS) content were taken as the response index，the L9(34) orthogonal design was applied to optimize the three preservatives at three concentration levels of different formulations.And comparative analysis was conducted on two optimal solutions.The results showed that optimal scheme of formula 1 (Ⅰ group) 0.20% EDTA+0.65% nano-TiO2+0.20% nisin，and optimal scheme of formula 2 (Ⅱ group) 0.25% EDTA+0.35%FA+0.20% nisin.Through validation test，optimal scheme of formula 2 (Ⅱ group) treated with yam still had good quality at 40 days of storage.Compared with control (soaking clear water)，decay index，BD，PPO activity and POD activity significantly reduced by 42.33%，49.20%，44.76% and 35.42%，TSS content and superoxide anion radical (O?[TX-*4]2)scavenging rate increased by 32.50% and 164.85% respectively.Under the condition of cold temperature，the best formula of preservation of early mature yam,EDTA concentration was 0.25%，FA concentration was 0.35%，nisin concentration was 0.20%.

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Last Update: 2019-07-12