食品科学 ›› 2014, Vol. 35 ›› Issue (4): 226-230.doi: 10.7506/spkx1002-6630-201404046

• 包装贮运 • 上一篇    下一篇

麻竹笋罐头贮藏过程中质构、果胶和色泽的变化

郑 炯1,2,宋家芯1,陈光静1,林 茂1,阚建全1,2,*   

  1. 1.西南大学食品科学学院,重庆 400715;
    2.农业部农产品贮藏保鲜质量安全风险评估实验室(重庆),重庆 400715
  • 收稿日期:2013-03-20 修回日期:2014-01-06 出版日期:2014-02-25 发布日期:2014-03-17
  • 通讯作者: 阚建全 E-mail:zhengjiong248@163.com
  • 基金资助:

    中央高校基本科研业务费专项(XDJK2013C131)

Changes in Texture, Pectin and Colour of Canned Dendrocalamus latiflorus (Giant Sweet Bamboo) Shoots during Storage

ZHENG Jiong1,2, SONG Jia-xin1, CHEN Guang-jing1, LIN Mao1, KAN Jian-quan1,2,*   

  1. 1. College of Food Science, Southwest University, Chongqing 400715, China; 2. Laboratory of Quality and Safety Risk Assessment
    for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture, Chongqing 400715, China
  • Received:2013-03-20 Revised:2014-01-06 Online:2014-02-25 Published:2014-03-17
  • Contact: KAN Jian-quan E-mail:zhengjiong248@163.com

摘要:

以麻竹笋为实验原料,研究麻竹笋罐头在常温(25 ℃)和低温(4 ℃)贮藏过程中质构、果胶和色泽的变化,并探讨麻竹笋罐头的硬度与果胶变化的相关性。结果表明:麻竹笋罐头在贮藏过程中硬度、原果胶和水溶性果胶含量逐渐下降,贮藏120 d后,常温贮藏和低温贮藏条件下麻竹笋的硬度分别下降39.5%和27.1%,原果胶含量分别下降66.4%和62.8%,水溶性果胶含量分别下降68.1%和75.7%。各果胶组分与硬度之间呈现较好的相关性,而原果胶与硬度之间的相关性高于水溶性果胶与硬度之间的相关性。麻竹笋罐头贮藏过程中亮度值L*和红绿值a*逐渐减小,黄蓝值b*逐渐增加;常温和低温分别贮藏30 d和70 d时,总色差ΔE>2。

关键词: 麻竹笋罐头, 贮藏, 质构, 果胶, 色泽

Abstract:

The changes in texture, pectin and colour of canned giant sweet bamboo shoots (Dendrocalamus latiflorus) during
storage at room temperature (25 ℃) and low temperature (4 ℃) were analyzed, and the correlation between hardness and
pectin contents was also investigated. The results showed that hardness and protopectin and water-soluble pectin contents of
canned bamboo shoots decreased gradually during storage. The hardness decreased by 39.5% and 27.1% after 120 d storage
at 25 and 4 ℃, respectively. Protopectin contents decreased by 66.4% and 62.8%, respectively, and water-soluble pectin
contents by 68.1% and 75.7%, respectively, during the storage period. The correlation analysis suggested that the hardness
of canned bamboo shoots had a good correlation with pectin components, while the correlation between protopectin and
hardness was higher than that between water-soluble pectin and hardness. The L* and a* values of canned bamboo shoots
decreased whereas b* value increased gradually, and total colour differences significantly changed after 30 d storage at
25 ℃ and 70 d storage at 4 ℃, respectively.

Key words: canned bamboo shoots (Dendrocalamus latiflorus), storage, texture, pectin, colour

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