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利用溶剂萃取法从大豆粗磷脂中提取得到了天然食品乳化剂卵磷脂,研究了影响卵磷脂得率的各种因数,得到了最佳工艺参数。 相似文献
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Rolf Gaupp 《中国食品工业》2002,(9):48-48
<正> 由于乳化剂一方面能改善食品产品的可储存性及保持产品的恒定质量,另一方面也可对各种取自天然的产品进行标准化,故被广泛应用于现代化食品工业的生产。市场对于乳化剂的需求不断上扬,在这方面的研究投资也自然相应增加。 什么是乳化剂? 乳化剂是一种具有亲水性和亲脂性成分的双极分子,能将如油和水这两种不能相溶的物质混合,从而达到不同程度的均匀及稳定状态(又称为乳化过 相似文献
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食品乳化剂及其进展(二) 总被引:4,自引:1,他引:3
<正>3 国内外乳化剂重点品种生产和应用 3.1 卵磷脂及其衍生物 作为乳化剂商品的卵磷脂,国内外主要是指大豆磷脂,也包括少量的花生磷脂等产品。大豆磷脂是指由大豆提油生产中的副产品,在大豆毛油中加入2~3%水,在搅拌下加热至60~80℃,使磷脂水合而成胶状的磷脂浆沉淀,然后经离心分离将水合磷脂与油分离后,立即在60℃以下真空干燥,所得为含水量低于1%的粗磷脂。粗磷脂亦称天然卵磷脂、浓缩磷脂、毛磷脂或液态天然磷脂;含大豆油33~35%。大豆磷脂主要组成如下(%): 相似文献
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Sekove Vodo Noamane Taarji Meryem Bouhoute Lorena de Oliveira Felipe Marcos A. Neves Isao Kobayashi Kunihiko Uemura Mitsutoshi Nakajima 《International Journal of Food Science & Technology》2020,55(4):1485-1496
Bagasse, a by-product from raw sugar factories, is conventionally burned for energy production. In this study, bagasse extracts from hydrothermal liquefaction (HTL) treatment (160 °C, 1 MPa and 30 min) with a carbohydrate content of 510.3 mg g−1 and 0.5 mg g−1 of total phenols were applied as emulsifiers in oil-in-water (O/W) emulsions. Bagasse extracts from HTL (0.5–4 wt%) lowered the interfacial tension between oil–water interphase from 19.8 to 14.0 mN m−1, owing possibly to the surface-active hydrophilic carbohydrate-hydrophobic lignin complexes in the extracts (lignin content: 7.1% w/w). Emulsions stabilised by bagasse extracts from HTL with average droplet size, dav of 0.79 μm were comparable with gum arabic (GA), dav of 2.24 μm after 11 days at 25 °C. Bagasse extracts containing biopolymers have the potential for industrial applications involving emulsion systems; therefore, HTL treatment of bagasse without any solvents can be regarded as an effective tool for producing natural emulsifiers. 相似文献
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南极磷虾油(AKO)在HLB值为6~16时具有较好的乳化能力,且在HLB值为8~11时表现最佳,倾向于形成水包油(O/W)型乳液。以南极磷虾油为乳化剂,鱼油为油相,制备O/W型乳液。研究了剪切速率、油相含量、AKO含量对乳液体系的影响,并利用单因素实验优化制备条件。结果表明:在南极磷虾油含量为3%,剪切速率为12 000 r/min,乳化时间为5 min,鱼油含量为60%条件下制备的乳液综合表现最好。 相似文献
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Ana Carolina de Aguiar Julia Teixeira de Paula Jorge Luis Muriel Mundo Julian Martínez David Julian McClements 《Journal of food process engineering》2021,44(4):e13660
There is a growing interest in the fabrication of colloidal delivery systems for bioactive compounds assembled from natural ingredients, particularly plant-based ones. In this study, Capsicum oleoresin was encapsulated within oil-in-water nanoemulsions by high-pressure microfluidization from natural emulsifiers: whey protein (WP), pea protein (PP), quillaja saponin (QS), and sunflower lecithin (SL). The influence of emulsifier, concentration, and microfluidization conditions (pressure and number of passes), on particle diameter and zeta-potential of nanoemulsions was evaluated. Particle diameter decreased with increasing homogenization pressure and number of passes. All emulsifiers were capable of forming charged droplets with dimensions in the nanometer range at sufficiently high concentrations. The stability of nanoemulsions to environmental stresses (pH, ionic strength, and heating) and storage was studied. The pH and salt stabilities were dependent on the emulsifier type. Overall, natural emulsifiers were effective in producing Capsicum oleoresin-loaded nanoemulsions with small particle size and capsaicin stability. 相似文献
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柠檬酸单甘酯CITREM在欧美等国家作为抗氧化剂、乳化剂、螫合剂、稳定剂、增稠剂在人造奶油、肉制品、涂抹食品、饮料乳浊液等各类食品中广泛使用,但我国直到2006年才由中华人民共和国卫生部发布第5号公告允许使用在乳化脂肪制品中,最大使用量10g/b。在2008年6月1日实施的《食品添加剂使用卫生标准》GB2760—2007表A.3中被列为可在各类食品中按生产需要适量使用的添加剂。本文通过对乳化剂柠檬酸单甘酯(CITREM)的特性,及其在食品中所起的作用及相关的法规进行综述,希望能对食品加工企业提供有益的参考。 相似文献
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<正> 巧克力生产中,制造商普遍采用聚甘油蓖麻醇酯乳化剂(PGPR)来调节巧克力浆料的流动性,以生产优质的巧克力产品。Palsgaard公司生产的PALSGAARD 4150聚甘油蓖麻醇酯乳化剂,是新一代无味、透明而具有高性能的新标准的PGPR产品。 功能特性 无味 新型的PGPR是一种无味的乳化剂,对于含有少量可可液块的巧克力尤其重要,如牛奶巧克力和白巧克力;此 相似文献