食品科学

• 营养卫生 • 上一篇    下一篇

影响木薯蚕蛹食用安全性的成分分析

梁菡峪,龙 悦,黄先智,丁晓雯   

  1. 1.西南大学食品科学学院,重庆市农产品加工重点实验室,重庆 400715;
    2.西南大学蚕学与系统生物研究所,重庆 400715
  • 出版日期:2014-06-15 发布日期:2014-07-03

Analysis of Components Possibly Affecting the Safety of Eri Silkworm (Samia cynthia ricini) Pupa for Consumption

LIANG Han-yu, LONG Yue, HUANG Xian-zhi, DING Xiao-wen   

  1. 1. Chongqing Key Laboratory of Agricultural Products Processing, College of Food Science, Southwest University,Chongqing 400715, China; 2. Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400715, China
  • Online:2014-06-15 Published:2014-07-03

摘要:

采用原子荧光法和滴定法分析影响木薯蚕蛹食用安全性的成分。结果表明:木薯蚕蛹中总砷含量(1.99±0.84)mg/kg、铅含量(0.14±0.03)mg/kg、镉含量(0.54±0.14)μg/kg、汞含量未检出。木薯蚕蛹中氰化物的含量为(0.33±0.07)mg/kg干样,经过水煮、蒸、油炸、微波处理后,其氰化物的清除率分别达到100%、78.83%、26.78%和39.37%。木薯蚕蛹挥发性盐基氮(TVB-N)值达到(71.62±5.32)mg/100 g。说明木薯蚕蛹铅、镉、汞和氰化物的含量远低于相关规定的限值。

关键词: 木薯蚕蛹, 挥发性盐基氮, 有害元素, 氰化物, 食用性

Abstract:

Objective: To investigate the chemical components of eri silkworm pupa that may influence its safety for
consumption. Methods: Chemical analysis was carried out on eri silkworm pupa by atomic fluorescence spectrometry and
titration method. Results: The contents of total arsenic, lead, and cadmium in eri silkworm pupa were (1.99 ± 0.84) mg/kg,
(0.14 ± 0.03) mg/kg, and (0.54 ± 0.14) μg/kg, respectively, and mercury was not detectable; the cassava cyanide content
in eri silkworm pupa was (0.33 ± 0.07) mg/kg for dry sample. After boiling, steaming, frying and microwave, the clearance
rate of cyanide was 100%, 78.83%, 26.78%, and 39.37%, respectively. The total volatile basic nitrogen (TVB-N) value of
eri silkworm pupa was (71.62 ± 5.32) mg/100 g. Conclusion: The contents of lead, cadmium, mercury and cyanide in eri
silkworm pupa are far lower than statutory limits, but the speciation of arsenic, freshness evaluation index and limits of
hazardous substances for eri silkworm pupa remain to be further investigated.

Key words: eri silkworm pupa, total volatile basic nitrogen, harmful elements, cyanide, edible