Establishment of a Mathematical Model for Treatment of Gynura bicolor DC. by Nano-Packaging in Combination with Controlled Atmosphere

doi:10.7506/spkx1002-6630-201416046

Abstract

Abstract:

The effects of nano-packaging (NP) in combination with controlled atmosphere (CA) on the preservation and
nutritional quality of fresh Gynura bicolor DC (G. bicolor). were investigated during storage at 0 ℃. The nutrition and
quality indices including decay index, respiration rate, as well as the contents of anthocyanin, chlorophyll, amino acid,
protein, total carbohydrate and reducing sugar were tested every 5 days. The combined treatment (CA+NP) improved the
nutritional quality of G. bicolor compared with polyethylene packaging in CA or NP in a modified atmosphere alone. After
20-day storage, CA + NP treatment significantly inhibited respiration intensity and maintained higher contents of total
soluble solids, anthocyanin, chlorophyll, amino acids, protein, total sugar, and reducing sugar. The simplified regression
model: Decay index/%=24.605 - 0.020X7 + 1.122X4 - 0.162X5 (where, X4: reducing sugar content, X5: anthocyanin content,
X7: chlorophyll content) revealed satisfactory goodness of fit (R2 ＞ 0.9). Hence, this model can be applied in practice.

Key words: Gynura bicolor DC., phytic acid, preservation, quality, mathematical model

CLC Number:

TS255.3

JIANG Li1, FENG Li1, HOU Tian-ying2, YU Zhi-fang1. Establishment of a Mathematical Model for Treatment of Gynura bicolor DC. by Nano-Packaging in Combination with Controlled Atmosphere[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201416046.

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Establishment of a Mathematical Model for Treatment of Gynura bicolor DC. by Nano-Packaging in Combination with Controlled Atmosphere

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