Carlos Zuluaga-Domínguez , Juan Serrato-Bermudez , Marta Quicazán
{"title":"干燥相关操作对蜂花粉加工中微生物、结构和理化方面的影响","authors":"Carlos Zuluaga-Domínguez , Juan Serrato-Bermudez , Marta Quicazán","doi":"10.1016/j.eaef.2018.01.003","DOIUrl":null,"url":null,"abstract":"<div><p><span>Bee-pollen is an important source of nutritional and bioactive compounds<span>. Given its high moisture content, bee-pollen is dried before commercialization; however, there are some drawbacks in the </span></span>microbiological quality<span>, which have a remarkable effect on the physicochemical stability. The aim of this study was to evaluate the influence of drying on bee-pollen at temperatures between 40 °C and 60 °C based on microbiological, structural and physical-chemical characteristics. The obtained results showed that bee-pollen dried at 40 and 50 °C had a significant increase in acidity after treatment, possibly due to the remain microbiological load. In contrast, a significant increase in flavonoids<span><span>, phenolics and antioxidant activity was found for all thermal treatments; nonetheless, a loss of </span>carotenoids by the effect of temperature was also obtained. Microscopy images showed a slight degradation in the bee-pollen structure, which may have caused the release of bioactive compounds, increasing the antioxidant capacity. A total ranking technique suggested the most adequate temperature for drying bee-pollen at 60 °C.</span></span></p></div>","PeriodicalId":38965,"journal":{"name":"Engineering in Agriculture, Environment and Food","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eaef.2018.01.003","citationCount":"19","resultStr":"{\"title\":\"Influence of drying-related operations on microbiological, structural and physicochemical aspects for processing of bee-pollen\",\"authors\":\"Carlos Zuluaga-Domínguez , Juan Serrato-Bermudez , Marta Quicazán\",\"doi\":\"10.1016/j.eaef.2018.01.003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>Bee-pollen is an important source of nutritional and bioactive compounds<span>. Given its high moisture content, bee-pollen is dried before commercialization; however, there are some drawbacks in the </span></span>microbiological quality<span>, which have a remarkable effect on the physicochemical stability. The aim of this study was to evaluate the influence of drying on bee-pollen at temperatures between 40 °C and 60 °C based on microbiological, structural and physical-chemical characteristics. The obtained results showed that bee-pollen dried at 40 and 50 °C had a significant increase in acidity after treatment, possibly due to the remain microbiological load. In contrast, a significant increase in flavonoids<span><span>, phenolics and antioxidant activity was found for all thermal treatments; nonetheless, a loss of </span>carotenoids by the effect of temperature was also obtained. Microscopy images showed a slight degradation in the bee-pollen structure, which may have caused the release of bioactive compounds, increasing the antioxidant capacity. A total ranking technique suggested the most adequate temperature for drying bee-pollen at 60 °C.</span></span></p></div>\",\"PeriodicalId\":38965,\"journal\":{\"name\":\"Engineering in Agriculture, Environment and Food\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.eaef.2018.01.003\",\"citationCount\":\"19\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering in Agriculture, Environment and Food\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S188183661730157X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering in Agriculture, Environment and Food","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S188183661730157X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
Influence of drying-related operations on microbiological, structural and physicochemical aspects for processing of bee-pollen
Bee-pollen is an important source of nutritional and bioactive compounds. Given its high moisture content, bee-pollen is dried before commercialization; however, there are some drawbacks in the microbiological quality, which have a remarkable effect on the physicochemical stability. The aim of this study was to evaluate the influence of drying on bee-pollen at temperatures between 40 °C and 60 °C based on microbiological, structural and physical-chemical characteristics. The obtained results showed that bee-pollen dried at 40 and 50 °C had a significant increase in acidity after treatment, possibly due to the remain microbiological load. In contrast, a significant increase in flavonoids, phenolics and antioxidant activity was found for all thermal treatments; nonetheless, a loss of carotenoids by the effect of temperature was also obtained. Microscopy images showed a slight degradation in the bee-pollen structure, which may have caused the release of bioactive compounds, increasing the antioxidant capacity. A total ranking technique suggested the most adequate temperature for drying bee-pollen at 60 °C.
期刊介绍：
Engineering in Agriculture, Environment and Food (EAEF) is devoted to the advancement and dissemination of scientific and technical knowledge concerning agricultural machinery, tillage, terramechanics, precision farming, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, computational mechanics, farm work systems and mechanized cropping. It is an international English E-journal published and distributed by the Asian Agricultural and Biological Engineering Association (AABEA). Authors should submit the manuscript file written by MS Word through a web site. The manuscript must be approved by the author''s organization prior to submission if required. Contact the societies which you belong to, if you have any question on manuscript submission or on the Journal EAEF.
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