Full
Outline
To explore the migration regularity and the reduction and control technology of pesticide residues in citrus during canning.
Weizhang, a Satsuma variety, was used as the research object to do the simulation test of the entire canning process. The high-risk pesticide residues were treated by soaking the whole fruit.The design dose was 1, 10, 100 mg/L. Through the selection of methods and process parameters, sampling analysis and risk assessment were conducted on various processing stages such as cleaning, blanching, peeling, segment membrane removal, rinsing and sterilization in canning.
It was proved that pesticides of citrus mainly remain in the peel. Ozone and ultrasonic treatment were more effective than running water cleaning. The effects of blanching and acid and alkali treatment on pesticide degradation were better with the increase of time and temperature.In the segment membrane removal tests, the residue of carbendazim decreased by 67.12% on average with the acid-treatment, and decreased by 46.98% with the alkali-treated. The best technical system for reducing pesticide residues in canned citrus had been determined: The whole fruit is washed with running water for 10 min and combined with ozone or ultrasonic cleaning, then blanched at 95 ℃ for 2 min. And it was peeled and split within 15 min and soaked for 40 min with 0.15% HCl in 25 ℃, and 0.05% NaOH for 5 min and rinsed with running water for 1 h and sterilized after canning.
The degradation effect of each process on pesticide residues is ascertained. The migration law of pesticide residues is clarified. The key control points of canning are determined and a set of perfect and effective reduction technologies have been formed.
5
1
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
