Method for controlling organophosphorus pesticide residue in bayberry juice through irradiation degradation
An organophosphorus pesticide and irradiation technology, which is applied in food science and other fields, can solve the problems affecting the food safety of bayberry juice, which have not been reported, and achieve the effect of organophosphorus pesticide residue control, maintenance, and quality of bayberry juice
Inactive Publication Date: 2012-04-11
ZHEJIANG UNIV
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Problems solved by technology
[0006] Red bayberry fruit is rich in nutrition, rich in glucose, fructose, citric acid, malic acid, vitamin B, vitamin C, etc. It is suitable for processing fruit juice. Red bayberry juice has become an important fruit juice drink in the market. Pesticides, causing organophosphorus pesticides to inevitably enter bayberry, affecting the food safety of agricultural products such as bayberry juice, but there is no report on how to control organophosphorus pesticide residues in bayberry juice
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Embodiment 1
[0046] Embodiment 1, the method that radiation degradation controls organophosphorus pesticide residue in red bayberry juice, carries out following steps successively:
[0047] 1) Pre-cool bayberry juice at 1-4°C for 120 minutes;
[0048] 2), the red bayberry juice after the above-mentioned precooling is transferred in the triangular flask with stopper, with 60 Co-γ rays are used as the radiation source for irradiation, the irradiation dose is 5kGy, the dose rate is 796.36cGy / min, and the irradiation time is 628 minutes.
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The invention discloses a method for controlling organophosphorus pesticide residue in bayberry juice through irradiation degradation. The method comprises the following steps of: 1) precooling the bayberry juice at the temperature of between 1 and 4DEG C for 100 to 140 minutes; and 2) putting the precooled into an enclosed container, irradiating by using 60Co-gamma rays as a radiation source, wherein the irradiation dose is 4.8-5.2kGy and the irradiation dose rate is 780-820cGy / min. By the method, the organophosphorus pesticide residue can be effectively, quickly and safely reduced or eliminated from the bayberry juice, so that the maximum organophosphorus pesticide residue in the bayberry juice reaches the national limit standard.
Description
technical field [0001] The invention relates to a method for degrading parathion, fenitrothion and fenthion in red bayberry juice by an irradiation method to realize the control of organophosphorus pesticide residues in red bayberry juice. Background technique [0002] Organophosphorus pesticides (Organophosphates, referred to as OPs) were developed to replace organochlorine pesticides and have been widely used worldwide, accounting for the first place in the insecticide market. Organophosphate pesticides have high efficacy and variety It is the main category of pesticides and plays an important role in agricultural production. pivotal role. Most organophosphorus pesticides are esters or amides of phosphoric acid. According to the structure, it can be divided into phosphate, phosphorothioate, phosphonate and phosphonothioate, phosphoramide and phosphorothioate. At present, there are more than 150 kinds of organophosphorus pesticides including insecticides, herbicides and ...
Claims
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IPC IPC(8): A23L2/70
Inventor 廖敏谢晓梅
Owner ZHEJIANG UNIV
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