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Food Qual Safet
Food Qual Safet  2019, Vol. 3 Issue (4): 243-250    DOI: 10.1093/fqsafe/fyz022
Research Articles     
评价共结晶法提取山羊豆种子活性物质微胶囊化后的抗氧化能力及理化性质
The antioxidant and physicochemical properties of microencapsulated bioactive compounds in Securigera securidaca (L.) seed extract by co-crystallization
Ali Behnam Nik,Mohsen Vazifedoost,Zohreh Didar,Bahareh Hajirostamloo
Department of Food Science and Technology, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
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摘要： 山羊豆种子中具有高抗氧化性的酚类化合物。天然抗氧化剂的保存和维持其活性一直是一个挑战，而微囊化是一种合适的方法。采用气相色谱-质谱联用技术对植物种子提取物的化学成分进行了鉴定。山羊豆种子醇提物的生物活性物质在共结晶过程中被微胶囊化在蔗糖基质中。评价内容包括总酚类化合物、自由基清除能力、生产效率、水分含量和粉末流动特性，如压缩指数、豪斯纳比和休止角。结果表明，对照品与共晶粉在酚类化合物和清除自由基能力上存在显著差异（P<0.05）。共晶粉末浸提液的生产效率和水分含量分别为84%和0.14%。微囊化粉末的粒径差异对粉末流动性有显著影响（P<0.05），粒径为1mm的粉末表现出较好的流动性。样品的FT-IR图显示了蔗糖分子特有的化学键，表明蔗糖分子结构中的共价键在加工后没有变化。扫描电镜图像显示结晶过程中形成的蔗糖晶体结构中存在空位和孔隙。因此，从植物提取物中获得的共结晶粉末可以用作食品和药物配方中合适的抗氧化剂。
关键词： 共结晶;  天然抗氧化剂;  生物活性;  流动性    
Abstract: Securigera securidaca seed is a good source of phenolic compounds with high antioxidant properties. Preservation and maintenance of natural antioxidants have always been a challenge and microencapsulation is a suitable method for this purpose. In this study, the chemical compounds of the plant seed extract were identified by GC/MS device. Bioactive compounds from the seed ethanolic extract were microencapsulated in the sucrose matrix during the co-crystallization process. The evaluations included total phenolic compounds, radical scavenging ability, production efficiency, moisture content, and flowability characteristics of the produced powders, such as compressibility index, Hausner ratio, and angle of repose. The results showed significant differences in the phenolic compounds and the radical scavenging ability between the control sample and the co-crystallized powder (P < 0.05). The production efficiency and the moisture content of extract-containing co-crystallized powder were 84% and 0.14%, respectively. The particle size difference of the microencapsulated powder could significantly affect the powder flowability characteristics (P < 0.05), and particles with a size of 1 mm showed better flowability behaviour. FT-IR charts for samples revealed chemical bonds specific to saccharose molecule indicating no changes in covalent bonds present in saccharose molecule structure after the process. Scanning electron microscope images showed the presence of vacant spaces and porosity in the structure of saccharose crystals formed during the process of crystallization. As a result, the co-crystallized powder obtained from the plant extract can be used as an appropriate antioxidant in the food and pharmaceutical formulations.
Key words: co-crystallization    natural antioxidant    bioactive    flowability
收稿日期: 2019-08-07 出版日期: 2020-01-19
通讯作者: Mohsen Vazifedoost, Department of Food Science and Technology, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran.     E-mail: m.vazifedoost@iau-neyshabur.ac.ir
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Ali Behnam Nik
Mohsen Vazifedoost
Zohreh Didar
Bahareh Hajirostamloo

引用本文:

Ali Behnam Nik, Mohsen Vazifedoost, Zohreh Didar, Bahareh Hajirostamloo. The antioxidant and physicochemical properties of microencapsulated bioactive compounds in Securigera securidaca (L.) seed extract by co-crystallization. Food Qual Safet, 2019, 3(4): 243-250.

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http://www.zjujournals.com/fqs/CN/10.1093/fqsafe/fyz022    或    http://www.zjujournals.com/fqs/CN/Y2019/V3/I4/243

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