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Chemical quality of different argentine honey varieties, irradiated to control american foulbrood; Calidad química de diferentes variedades de mieles argentinas, irradiadas para controlar 'loque americana'

Abstract

'American foulbrood' is a disease that seriously affects bees. Honey may be contaminated with spores of the related bacteria, Paenibacillus larvae larvae, which is a great drawback for trade. The scientific literature reports that these spores, resistant to heat and chemicals, are inactivated in honey when it is irradiated al 10 kGy, being this treatment mandatory in the Republic of Southafrica. Irradiated food wholesomeness is endorsed by the World Health Organization. Considering that Argentina is an important honey producer and exporter, the aim of this work was to evaluate the effect of ionizing radiation on some of its commercial chemical parameters along storage time. Honeys with different characteristics, coming from five different regions of the country: Middle, Patagonia, North, Litoral, Humid Pampa, were provided by producers from a commission called 'Packaged honey' of the National Food, Fishery and Agriculture Ministry. Fifteen kg of each honey variety were packaged in 500 g polypropylene recipes with polyethylene lids, and irradiated at the semi industrial cobalt-60 facility of the Ezeiza Atomic Center, 500,000 Ci of activity, with doses of 0, 10 and 20 kilo Grays. Control and irradiated samples were stored at room temperature for 10 months. Some standardized chemical analysis required by  More>>
Authors:
Zunich, C.D., E-mail: c.zunich@yahoo.com.ar; [1]  Markowski, I., E-mail: imarkowski@unla.edu.ar; [2]  Narvaiz, Patricia [3] 
  1. Universidad Tecnológica Nacional, Avellaneda (Argentina). Facultad de Ingeniería, Maestria en Tecnologia de Alimentos
  2. Universidad Nacional de Lanús, Buenos Aires (Argentina). Laboratorio de Fisico-Quimica
  3. Comisión Nacional de Energía Atómica, Ezeiza (Argentina). Gerencia de Aplicaciones y tecnologia de Radiaciones, Sector Irradiacion de Alimentos
Publication Date:
Jul 01, 2011
Product Type:
Conference
Report Number:
INIS-AR-C-1706
Resource Relation:
Conference: AATN 2011: 38. Annual meeting of the Argentine Association of Nuclear Technology: Strengthening the nuclear option for power generation, AATN 2011: 38. Reunion anual de la Asociacion Argentina de Tecnologia Nuclear: Fortalecimiento de la opcion nuclear para la generacion de energia, Buenos Aires (Argentina), 14-18 Nov 2011; Other Information: Abstract only; Related Information: In: XXXVIII Annual meeting of the Argentine Association of Nuclear Technology (AATN 2011)| [vp.]
Subject:
60 APPLIED LIFE SCIENCES; ARGENTINA; BACTERIAL SPORES; BIOLOGICAL FOULING; COBALT 60; DOSE RATES; HONEY; IONIZING RADIATIONS; IRRADIATION; QUALITATIVE CHEMICAL ANALYSIS
OSTI ID:
22429005
Research Organizations:
Asociacion Argentina de Tecnologia Nuclear (Argentina)
Country of Origin:
Argentina
Language:
Spanish
Other Identifying Numbers:
TRN: AR14C0018135011
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
1 page(s)
Announcement Date:
Feb 09, 2016

Citation Formats

Zunich, C.D., E-mail: c.zunich@yahoo.com.ar, Markowski, I., E-mail: imarkowski@unla.edu.ar, and Narvaiz, Patricia. Chemical quality of different argentine honey varieties, irradiated to control american foulbrood; Calidad química de diferentes variedades de mieles argentinas, irradiadas para controlar 'loque americana'. Argentina: N. p., 2011. Web.
Zunich, C.D., E-mail: c.zunich@yahoo.com.ar, Markowski, I., E-mail: imarkowski@unla.edu.ar, & Narvaiz, Patricia. Chemical quality of different argentine honey varieties, irradiated to control american foulbrood; Calidad química de diferentes variedades de mieles argentinas, irradiadas para controlar 'loque americana'. Argentina.
Zunich, C.D., E-mail: c.zunich@yahoo.com.ar, Markowski, I., E-mail: imarkowski@unla.edu.ar, and Narvaiz, Patricia. 2011. "Chemical quality of different argentine honey varieties, irradiated to control american foulbrood; Calidad química de diferentes variedades de mieles argentinas, irradiadas para controlar 'loque americana'." Argentina.
@misc{etde_22429005,
title = {Chemical quality of different argentine honey varieties, irradiated to control american foulbrood; Calidad química de diferentes variedades de mieles argentinas, irradiadas para controlar 'loque americana'}
author = {Zunich, C.D., E-mail: c.zunich@yahoo.com.ar, Markowski, I., E-mail: imarkowski@unla.edu.ar, and Narvaiz, Patricia}
abstractNote = {'American foulbrood' is a disease that seriously affects bees. Honey may be contaminated with spores of the related bacteria, Paenibacillus larvae larvae, which is a great drawback for trade. The scientific literature reports that these spores, resistant to heat and chemicals, are inactivated in honey when it is irradiated al 10 kGy, being this treatment mandatory in the Republic of Southafrica. Irradiated food wholesomeness is endorsed by the World Health Organization. Considering that Argentina is an important honey producer and exporter, the aim of this work was to evaluate the effect of ionizing radiation on some of its commercial chemical parameters along storage time. Honeys with different characteristics, coming from five different regions of the country: Middle, Patagonia, North, Litoral, Humid Pampa, were provided by producers from a commission called 'Packaged honey' of the National Food, Fishery and Agriculture Ministry. Fifteen kg of each honey variety were packaged in 500 g polypropylene recipes with polyethylene lids, and irradiated at the semi industrial cobalt-60 facility of the Ezeiza Atomic Center, 500,000 Ci of activity, with doses of 0, 10 and 20 kilo Grays. Control and irradiated samples were stored at room temperature for 10 months. Some standardized chemical analysis required by the Argentine Food Code (AFC) were performed on the first, fourth and tenth storage months: water content, acidity, diastase content, reducing sugars, and hydroxymethylfurfural. Reducing sugars and diastase activity slightly diminished, and acidity slightly increased, along storage which is typical in this product; no significant differences were found between control and irradiated samples. Hydroxymethylfurfural values, related to aging or thermal abuse, diminished slightly though significantly due to irradiation, which would not affect the product quality as regulations require not to surpass a maximum value, 40 mg/kg in the AFC. So ionizing irradiation at a 10 kGy dose, enough to control American foulbrood, and even at a 20 kGy dose, maximum allowed by the AFC for a minimum dose of 10 kGy, maintained the chemical quality of these five Argentine honey varieties during 10 months at room temperature. (author) [Spanish] Texto completo: 'Loque americana'es una enfermedad que afecta seriamente a las abejas. La miel puede estar contaminada con esporas de la bacteria causante, lo cual restringe su comercialización. La literatura científica informa que estas esporas, resistentes al calor y a agentes químicos, son inactivadas en miel por 10 kilogray (kGy) de energía ionizante, tratamiento que se requiere por ley en Sudáfrica para importar este producto. La inocuidad de los alimentos irradiados está garantizada por la Organización Mundial de la Salud. Considerando que Argentina es un importante productor y exportador de miel, el objetivo de este trabajo fue evaluar el efecto de esta irradiación en su calidad química durante el almacenamiento. Mieles de distintas características, provenientes de 5 regiones del país: Centro, Patagonia, Norte, Litoral, Pampa Húmeda, fueron aportadas por productores congregados en una comisión denominada 'Miel fraccionada', dependiente de la Secretaría de Agricultura, Ganadería, Pesca y Alimentación de la Nación. Quince kilogramos de cada variedad de miel fueron fraccionados en frascos de polipropileno con tapa de polietileno. Se irradiaron muestras en la Planta Semi Industrial de cobalto 60 del Centro Atómico Ezeiza, de actividad aproximada de 500.000 Ci, a dosis de 0, 10 y 20 kGy, medidas con dosímetro de dicromato de plata por el laboratorio Dosimetría de Altas Dosis (CNEA), uniformidad de dosis promedio de 1,1 y velocidad de dosis de 12 kGy/h. Muestras controles e irradiadas fueron almacenadas a temperatura y humedad ambientes durante 10 meses. Se realizaron análisis químicos requeridos por el Código Alimentario Argentino según métodos normatizados: humedad, acidez, diastasas, azúcares reductores, e hidroximetilfurfural, en los meses 1º, 4º y 10º de almacenamiento. Los resultados se analizaron estadísticamente por test 't' de Student para diferencia de medias, p<0,05. Los azucares reductores y la actividad enzimática disminuyeron levemente durante el almacenamiento, y la acidez aumentó levemente, lo cual sucede normalmente en este producto, no observándose diferencias significativas entre muestras controles e irradiadas. El hidroximetilfurfural, indicador de vejez o de aplicación excesiva de procesos térmicos en las mieles, disminuyó en forma leve y significativa con la irradiación, lo cual no afectaría la calidad del producto ya que lo que se requiere es que no sobrepase un límite superior , que en el caso del Código Alimentario Argentino es de 40 mg/kg . Se puede concluir que la irradiación ionizante, aplicada a una dosis de 10 kGy, suficiente para controlar 'Loque americana', y aún a la dosis máxima de 20 kGy, conservó la calidad quimica de cinco variedades de mieles argentinas durante 10 meses de almacenamiento a temperatura ambiente. (autor)}
place = {Argentina}
year = {2011}
month = {Jul}
}