Study On Pollination And Sterilization Of Bee Pollen

Food irradiation, a non-thermal processing technology, is the process of treatingfood or agricultural product with specific dosage of γ-ray radiation by usage ofCo-60as resource to produce high energy electron. This treatment slows or haltsspoilage by retarding enzymic action or destroying microorganisms and it can alsoinactivate foodborne pathogenic organisms (reducing the risk of food borne illness).Further applications include sprout inhibition, delay of ripening and marketable life,increase of juice yield, and improvement of quality. The present study mainlydeveloped the Co-60γ-ray radiation dose and studied the effect of different dose onthe quality (vitamin C, protein, amine acid, moisture content and pesticide), sensorycharacteristics and total bacterial populations in honeybee pollen of Camelliasinensis (HPCS). The results are helpful to understand the feasibility of improvementon quality of HPCS induced by radiation. The summary achievements of this studyare summarized as follows:1. Co-60γ-ray radiation was favor of the storage of HPCS for their ability toinhibit the bacterial populations in HPCS. The bacterial populations, amount ofmould and coliform bacteria in γ-ray-irradiated HPCS at10KGy were found to beless than10cfu/g,20cfu/g and3MPN/100g, respectively.2. Co-60γ-ray radiation had no effects on the sensory characteristics, such ascolor, odor and taste and the internal quality of HPCS. Though vitamin C decreased54%, the contents of protein and amine acid were not changed in HPCS after theradiation at10KGy.3. Good food security was found in Co-60γ-ray-irradiated HPCS. There is noradioactivity residue detected in irradiated HPCS, as well as no radioactive inductionproduced. Moreover, transmutation of microorganisms, toxicity and carcinogenicitywere also not found in our study.4. It is feasible to sterilize HPCS by γ-ray radiation. Based on our study andthe standards provided by company, the optimal dosage was10KGy.