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Irradiation of mangoes as a quarantine treatment

Abstract

This research project was conducted following guidelines of research protocols for post-harvest treatments developed by the United States Department of Agriculture CUSA. Laboratory bioassays included the irradiation of mangoes infested with third instar larvae of Anastrepha serpentina (Wied), A. ludens (Loew), A. obliqua (Macquart) and Ceratitis capitata (Wied) , at doses from 10 to 250 Gy. Irradiation doses were applied using a Co-60 AECL Model JS-7400 irradiator. The design was chosen to obtain a maximum to minimum ratio equal to, or less than, 1.025. C. capitata was the species most tolerant to irradiation. A dose of 60 Gy applied to third instar fruit fly larvae sterilized this species and prevented emergence of adults of the other three species. A dose of 250 Gy was required to prevent emergence of C. capitata. In fertility tests using emerged adults of A . Iudens, and A. obliqua a dose of 30 Gy gave 45 % and 27 % fertility, respectively. Adults of A. serpentina that emerged, died before reaching sexual maturity. The confirmatory tests, at probit-9 security level, were done at 100 Gy for the three species of Anastrepha and at 150 Gy for C. capitata. The quality of mangoes irradiated up to  More>>
Publication Date:
Jun 15, 1991
Product Type:
Technical Report
Report Number:
IA-91-19; INIS-MX-RI-0092
Subject:
60 APPLIED LIFE SCIENCES; AGRICULTURE; COBALT 60; COOPERATIVES; DIAGRAMS; DOSE RATES; EXPERIMENTAL DATA; FRUITS; INSECTS; IRRADIATION; IRRADIATION DEVICES; LARVAE; MANGOES; RADIATION DOSES
OSTI ID:
20759495
Research Organizations:
Instituto Nacional de Investigaciones Nucleares, Ocoyoacac (Mexico)
Country of Origin:
Mexico
Language:
English
Other Identifying Numbers:
TRN: MX0600145066383
Availability:
Available from INIS in electronic form
Submitting Site:
MXN
Size:
16 pages
Announcement Date:
Aug 21, 2006

Citation Formats

Bustos R, M E, Enkerlin H, W, Toledo A, J, Reyes F, J, and Casimiro G, A. Irradiation of mangoes as a quarantine treatment. Mexico: N. p., 1991. Web.
Bustos R, M E, Enkerlin H, W, Toledo A, J, Reyes F, J, & Casimiro G, A. Irradiation of mangoes as a quarantine treatment. Mexico.
Bustos R, M E, Enkerlin H, W, Toledo A, J, Reyes F, J, and Casimiro G, A. 1991. "Irradiation of mangoes as a quarantine treatment." Mexico.
@misc{etde_20759495,
title = {Irradiation of mangoes as a quarantine treatment}
author = {Bustos R, M E, Enkerlin H, W, Toledo A, J, Reyes F, J, and Casimiro G, A}
abstractNote = {This research project was conducted following guidelines of research protocols for post-harvest treatments developed by the United States Department of Agriculture CUSA. Laboratory bioassays included the irradiation of mangoes infested with third instar larvae of Anastrepha serpentina (Wied), A. ludens (Loew), A. obliqua (Macquart) and Ceratitis capitata (Wied) , at doses from 10 to 250 Gy. Irradiation doses were applied using a Co-60 AECL Model JS-7400 irradiator. The design was chosen to obtain a maximum to minimum ratio equal to, or less than, 1.025. C. capitata was the species most tolerant to irradiation. A dose of 60 Gy applied to third instar fruit fly larvae sterilized this species and prevented emergence of adults of the other three species. A dose of 250 Gy was required to prevent emergence of C. capitata. In fertility tests using emerged adults of A . Iudens, and A. obliqua a dose of 30 Gy gave 45 % and 27 % fertility, respectively. Adults of A. serpentina that emerged, died before reaching sexual maturity. The confirmatory tests, at probit-9 security level, were done at 100 Gy for the three species of Anastrepha and at 150 Gy for C. capitata. The quality of mangoes irradiated up to 1000 Gy was evaluated by chemical, physiological, and sensorial tests. The determination of vitamin C indicated that there was no loss of the nutritive value of the fruit. It also was observed that fruit metabolism was not accelerated since no significant increase in respiration or transpiration was registered and consumers accepted both treated and untreated fruit in the same way. (Author)}
place = {Mexico}
year = {1991}
month = {Jun}
}