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发酵法生产番茄红素的研究进展 总被引:1,自引:1,他引:0
番茄红素是由11个共轭双键及2个非共轭碳碳双键构成的高度不饱和直链型烃类化合物,具有预防癌症、防治心血管疾病、缓解骨质疏松症和提高免疫等重要的生理功能。番茄红素的生产方法主要有提取法、化学合成法和微生物发酵法。由于番茄红素含量低,提取法无法满足市场需求;化学合成法存在收率低、产物不稳定以及合成成本高等缺点;发酵法被认为是生产番茄红素最有潜力的方法,文中对发酵法生产番茄红素的关键技术环节(如菌种选育、发酵工艺优化和分离纯化)的研究进展进行了阐述。 相似文献
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番茄红素的生产工艺研究进展 总被引:14,自引:0,他引:14
番茄红素具有高效猝灭单线态氧和清除自由基的作用,其抗氧化性在类胡萝卜素中最强;番茄红素在预防人类某些癌症和慢性病的发生方面起着重要的作用,是目前国际上功能食品成分研究中的一个热点。本文综述了番茄红素的生产方法,包括化学合成法,植物提取法和微生物发酵法。 相似文献
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《食品添加剂市场》讯,美国食品和药品管理局(FDA)近日发布公告称,由于番茄红素的作用目前并不肯定,因此番茄、番茄酱等产品的生产者及番茄红素营养补充剂的生产商,不能在其产品上标注“具有预防癌症”等字样。近年来,有研究发现,番茄红素作为一种抗氧化剂,具有预防前列腺癌的作用。因此,很多生产番茄酱、番茄调味品的厂商为了促销,都强调其产品中含有番茄素。FDA认为,目前掌握的证据无法证明番茄红素具有抗癌效果。 相似文献
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研究番茄酱浓缩生产过程对果实中番茄红素构象的影响。采用光谱和色谱结合的方法鉴定出千禧番茄中8种番茄红素,分别为X_1-顺式番茄红素、X_2-顺式番茄红素、9,13-二顺式番茄红素、15-顺式番茄红素、13-顺式番茄红素、9-顺式番茄红素、全反式番茄红素和5-顺式番茄红素。根据番茄红素分子在浓缩过程中的变化率,各组分稳定性强弱为:9-顺式番茄红素13-顺式番茄红素9,13-二顺式番茄红素15-顺式番茄红素。随着浓缩时间的延长,总顺式番茄红素含量在2,3,4,5 h分别增加了5.31%,7.78%,7.93%和9.28%;随着浓缩温度升高,总顺式番茄红素含量增加了1%左右。浓缩时间对番茄红素异构化反应的影响比浓缩温度更显著。 相似文献
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Blakeslea trispora发酵生产番茄红素动力学的研究 总被引:2,自引:0,他引:2
番茄红素是类胡萝卜素生物合成途径中的一个中间产物,通过添加阻断剂,阻断代谢途径,可以达到番茄红素积累的目的。以Blakeslea trispora为生产菌,研究了番茄红素的发酵动力学,通过各自的模拟方程预测出菌体生长量,产物生成量,以及葡萄糖的消耗量,为工业放大生产番茄红素提供了理论依据和方法。 相似文献
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Emmanouil H. Papaioannou Maria Liakopoulou-Kyriakides Anastasios J. Karabelas 《Critical reviews in food science and nutrition》2016,56(4):686-709
Lycopene is an abundant natural carotenoid pigment with several biological functions (well-known for its antioxidant properties) which is under intensive investigation in recent years. Lycopene chemistry, its natural distribution, bioavailability, biological significance, and toxicological effects are briefly outlined in the first part of this review. The second, major part, deals with various modern downstream processing techniques, which are assessed in order to identify promising approaches for the recovery of lycopene and of similar lipophilic compounds. Natural lycopene is synthesized in plants and by microorganisms, with main representatives of these two categories (for industrial production) tomato and its by-products and the fungus Blakeslea trispora, respectively. Currently, there is a great deal of effort to develop efficient downstream processing for large scale production of natural-origin lycopene, with trends strongly indicating the necessity for “green” and mild extraction conditions. In this review, emphasis is placed on final product safety and ecofriendly processing, which are expected to totally dominate in the field of natural-origin lycopene extraction and purification. 相似文献
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JOHN SHI MARC LE MAGUER MIKE BRYAN YUKIO KAKUDA 《Journal of food process engineering》2003,25(6):485-498
Lycopene as a natural antioxidant may provide protection against a broad range of epithelial cancers. Tomatoes and tomato‐based food products are a major source of lycopene compounds. Thermal processing is the main procedure in tomato puree production. Heat and light induces lycopene oxidation and isomerization of the all‐trans form to the cis form. The level of cis‐isomers increases as treatment time increases but only for a short period during the beginning of the treatment. The major effect of thermal processing was a significant decrease in the total lycopene content. Lycopene is relatively stable if heated at temperatures below 100C, but the duration of heating must be taken into consideration. The kinetics of lycopene degradation was analyzed. A shorter period of time of heating and less light irradiation in processing and storage would reduce lycopene degradation to a great extent. 相似文献
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Penelope Perkins‐Veazie Julie K Collins Sam D Pair Warren Roberts 《Journal of the science of food and agriculture》2001,81(10):983-987
Lycopene, a carotenoid, has antioxidant properties that may reduce the incidence of certain cancers. Watermelon (Citrullus lanatus (Thunb) Matsum & Nakai) is a natural source of lycopene, with a reported average content of 48.7 µg g?1 fresh weight based on samples taken from retail produce. This study demonstrated the variability of lycopene content in 11 red‐fleshed watermelon cultivars grown at one location, representing seedless, open‐pollinated and hybrid types, and in commercially shipped hybrid and seedless melons, representing seasonal production periods. Tristimulus colorimeter a* and chroma values were positively correlated with lycopene values, but linear or quadratic regressions of colorimeter data against lycopene values were not significant. Tristimulus colorimeter readings from cut melons were compared to amounts of lycopene extracted from the same melons. Lycopene content varied widely among cultivars, with four cultivars having mean values greater than 65.0 µg g?1 fresh weight. Seedless types sampled tended to have higher amounts of lycopene (>50.0 µg g?1 fresh weight) than seeded types. Watermelon lycopene content changed for some cultivars with production season. Published in 2001 for SCI by John Wiley & Sons, Ltd 相似文献