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中国精品科技期刊2020
王翠玲,戴常军,刘晴,等. 不同贮藏条件对发芽蒸谷米品质的影响[J]. 食品工业科技,2022,43(3):325−332. doi: 10.13386/j.issn1002-0306.2021060013.
引用本文: 王翠玲,戴常军,刘晴,等. 不同贮藏条件对发芽蒸谷米品质的影响[J]. 食品工业科技,2022,43(3):325−332. doi: 10.13386/j.issn1002-0306.2021060013.
WANG Cuiling, DAI Changjun, LIU Qing, et al. Influence of Different Storage Conditions on Quality of Germinated Parboiled Rice[J]. Science and Technology of Food Industry, 2022, 43(3): 325−332. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021060013.
Citation: WANG Cuiling, DAI Changjun, LIU Qing, et al. Influence of Different Storage Conditions on Quality of Germinated Parboiled Rice[J]. Science and Technology of Food Industry, 2022, 43(3): 325−332. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021060013.

不同贮藏条件对发芽蒸谷米品质的影响

Influence of Different Storage Conditions on Quality of Germinated Parboiled Rice

  • 摘要: 为探究不同贮藏条件(包装材料、氧气含量和温度)对发芽蒸谷米的理化性质、生物活性物质、抗氧化活性、微生物学特性的影响,将发芽蒸谷米在真空和常压状态下分别包装在铝层压聚乙烯(aluminum-laminated-polyethylene, ALPE)和聚酰胺-聚乙烯(polyamide-polyethylene, PAPE)包装袋中,并分别在4 ℃和30 ℃下贮存6个月。结果表明,使用ALPE材料真空包装,在较低温度下可有效抑制生物活性物质的降解,延缓理化性质的变化,防止酸败,总酚含量和抗氧化活性也得到了充分保留。水分含量和水分活度在30 ℃下储存在PAPE中时会持续降低,而在30 ℃和4 ℃条件下储存在ALPE中时两者均保持不变。在30 ℃时γ-氨基丁酸和总花色苷含量会随着贮藏时间的增加而降低,但在4 ℃下其含量不随贮藏时间变化。在真空且低温的条件下,样品的总酚含量和抗氧化活性能够更有效地保留。基于硫代巴比妥酸法测定的发芽蒸谷米的酸败程度会随贮藏时间的延长而增加,此检测结果与感官评价结果呈高度相关(R2=0.9943)。在所有实验条件下,发芽蒸谷米的微生物含量均未超出国家相关标准的限量值,表明本研究过程中待测样品的微生物指标符合要求并可放心食用。

     

    Abstract: In order to explore the effects of different storage conditions (packaging materials, oxygen content and temperature) on the physical and chemical properties, biologically active substances, antioxidant activity, and microbiological properties of germinated parboiled rice, the germinated parboiled rice was put under vacuum and normal pressure, packed in aluminum-laminated-polyethylene (ALPE) and polyamide-polyethylene (PAPE) pouches and stored at 4 ℃ and 30 ℃ for 6 months. The results showed that packaging at lower temperatures under vacuum in ALPE was effective in retarding the degradation of bioactive compounds, changes in physicochemical quality, and rancidity. Moisture content and water activity continuously declined during the storage in PAPE pouches at 30 ℃ while they were unchanged when stored in ALPE at 30 ℃ and under all conditions at 4 ℃. γ-aminobutyrate and total colorosin content decreased at 30 ℃, but did not change with storage time at 4 ℃. Total phenolic content and antioxidant activities were also effectively retained under low temperature storage, especially in vacuum packaging. Rancidity of germinated parboiled rice determined using the thiobarbituric acid test, increased with storage time and showed a high correlation with sensory evaluation results (R2=0.9943). Under all test conditions, the microbial content of the germinated parboiled rice did not exceed the limit value of the relevant national standards, indicating that the microbiological indicators of the sample to be tested in the process of this research met the requirements and could be eaten with confidence.

     

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