Analysis on sampling inspection results of quality and safety of tea substitutes commercially available in Hebei Province
CSTR:
Author:
Affiliation:

Hebei Provincial Health Commission Comprehensive Supervision Service Center, Hebei Shijiazhuang 050071, China

Clc Number:

R155

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    Objective To assess the quality and safety of tea substitutes sold in Hebei Province.Methods Sixty-three samples of tea substitutes were collected from the markets of three cities in Hebei Province. Each sample was tested for moulds, coliforms, cadmium, moisture and ash content according to national standard methods. The test results were assessed in terms of qualification according to local safety standard of Hebei Province for tea substitutes.Results Among the 63 samples, 16 samples had moulds counts exceeding the limit. The over-limit rate for moulds was 25.4%; the moulds contents varied from 140~18 000 CFU/g in over-limit samples with the median of 600 CFU/g. Four samples were found to exceed the limit of coliforms with a 6.3% (4/63) over-limit rate. The coliforms measurements of over-limit samples were between 7.5~110 MPN/g with the median of 110 MPN/g. One sample was over limit for cadmium with the content of 9.6 mg/kg. The test results for moisture and ash content of the 63 samples were all in accordance with the standard. Among the 63 samples, 46 samples were qualified for all measurements, and the total qualified rate was 73.0% (46/63). There was no statistics difference in the qualified rate of tea substitutes among different producing areas and different product types.Conclusion The unqualified rate of the tea substitutes sold in Hebei Province was high. Most unqualified samples exceeded the standard for mold, while a few samples exceeded the standard for coliforms and cadmium.

    Reference
    Related
    Cited by
Get Citation

ZHANG Yinfa, LIU Jie, LIU Jing, YANG Liwei, ZHANG Junqin, MENG Weidong, CHEN Guiru. Analysis on sampling inspection results of quality and safety of tea substitutes commercially available in Hebei Province[J].中国食品卫生杂志,2023,35(4):555-558.

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:December 03,2021
  • Revised:
  • Adopted:
  • Online: July 03,2023
  • Published:
Article QR Code