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1.
In diatoms, the main photosynthetic pigments are chlorophylls a and c, fucoxanthin, diadinoxanthin and diatoxanthin. The marine pennate diatom Haslea ostrearia has long been known for producing, in addition to these generic pigments, a water-soluble blue pigment, marennine. This pigment, responsible for the greening of oysters in western France, presents different biological activities: allelopathic, antioxidant, antibacterial, antiviral, and growth-inhibiting. A method to extract and purify marennine has been developed, but its chemical structure could hitherto not be resolved. For decades, H. ostrearia was the only organism known to produce marennine, and can be found worldwide. Our knowledge about H. ostrearia-like diatom biodiversity has recently been extended with the discovery of several new species of blue diatoms, the recently described H. karadagensis, H. silbo sp. inedit. and H. provincialis sp. inedit. These blue diatoms produce different marennine-like pigments, which belong to the same chemical family and present similar biological activities. Aside from being a potential source of natural blue pigments, H. ostrearia-like diatoms thus present a commercial potential for aquaculture, cosmetics, food and health industries.  相似文献   
2.
[目的]研究侧柏叶黄酮雪花膏的理想配方并测试该功能性雪花膏的美白效果、对酪氨酸酶的抑制率等性能。[方法]采用侧柏叶总黄酮提取液为疗效剂,以功能性雪花膏为研究对象,对侧柏黄酮功能性雪花膏的制备工艺、配方及性能进行了研究。[结果]该功能性雪花膏,当0.024mg/ml侧柏叶总黄酮用量为10.0ml时,酪氨酸酶的抑制效果较好。[结论]侧柏叶总黄酮功能性雪花膏符合国家标准,综合性能较好,生产工艺简单。  相似文献   
3.
辅酶Q10是一种脂溶性醌类化合物,在人体呼吸链中参与电子传递,具有促进细胞新陈代谢的功能。基于辅酶Q10的特点和作用,为进一步开发辅酶Q10,并对其进行有效的利用,以发挥其重要的价值,综述了辅酶Q10在医药卫生和美容护肤等领域中的应用及研究状况,并分析了辅酶Q10与其它药物之间的互作关系,并对其开发前景进行了展望。  相似文献   
4.
铁皮石斛的综合利用与展望   总被引:4,自引:0,他引:4  
对铁皮石斛的药用成分及其综合利用方面进行综述和展望.铁皮石斛内含有大量有益于人类健康的药用活性成分,在食用、医用,观赏及美容护肤领域有着广泛的应用前景.  相似文献   
5.
Astaxanthin (AST) is a biomolecule known for its powerful antioxidant effect, which is considered of great importance in biochemical research and has great potential for application in cosmetics, as well as food products that are beneficial to human health and medicines. Unfortunately, its poor solubility in water, chemical instability, and low oral bioavailability make its applications in the cosmetic and pharmaceutical field a major challenge for the development of new products. To favor the search for alternatives to enhance and make possible the use of AST in formulations, this article aimed to review the scientific data on its application in delivery systems. The search was made in databases without time restriction, using keywords such as astaxanthin, delivery systems, skin, cosmetic, topical, and dermal. All delivery systems found, such as liposomes, particulate systems, inclusion complexes, emulsions, and films, presented peculiar advantages able to enhance AST properties, among which are stability, antioxidant potential, biological activities, and drug release. This survey showed that further studies are needed for the industrial development of new AST-containing cosmetics and topical formulations.  相似文献   
6.
Marine ingredients are a source of new chemical entities with biological action, which is the reason why they have gained relevance in the cosmetic industry. The facial care category is the most relevant in this industry, and within it, the sensitive skin segment occupies a prominent position. This work analyzed the use of marine ingredients in 88 facial cosmetics for sensitive skin from multinational brands, as well as their composition and the scientific evidence that supports their efficacy. Marine ingredients were used in 27% of the cosmetic products for sensitive skin and included the species Laminaria ochroleuca, Ascophyllum nodosum (brown macroalgae), Asparagopsis armata (red macroalgae), and Chlorella vulgaris (microalgae). Carotenoids, polysaccharides, and lipids are the chemical classes highlighted in these preparations. Two ingredients, namely the Ascophyllum nodosum extract and Asparagopsis armata extracts, present clinical evidence supporting their use for sensitive skin. Overall, marine ingredients used in cosmetics for sensitive skin are proposed to reduce skin inflammation and improve the barrier function. Marine-derived preparations constitute promising active ingredients for sensitive skin cosmetic products. Their in-depth study, focusing on the extracted metabolites, randomized placebo-controlled studies including volunteers with sensitive skin, and the use of extraction methods that are more profitable may provide a great opportunity for the cosmetic industry.  相似文献   
7.
在中日两国政治、经济、文化各方面进行交流的同时,中日两国的语言也相互影响着。在古代,中国曾是日本学习的对象,汉语对日本语言的形成和发展有着诸多的影响。近代以来,中日两国间语言的相互影响,更多的是日语对汉语的影响,汉语向日语借入大量的词汇。以现代汉语中日源化妆品牌名为例,并将其与此前汉语中的日源外来词进行对比考察,并据此对现代汉语中的日源外来词的未来发展方向进行了一些探索研究。  相似文献   
8.
目的研究AFG(精氨酸双糖苷)系列人参化妆品中各有效添加物的量效关系。方法用紫外分光光度仪测定人参系列化妆品体外清除DPPH自由基和ABTS自由基活性,以检测其抗氧化能力,同时测定其保湿效果。结果 AFG系列化妆品中人参提取物较红参提取物具有更强的清除自由基能力和更好的保湿效果。  相似文献   
9.
Some commonly used surfactants in cosmetic products raise concerns due to their skin-irritating effects and environmental contamination. Multifunctional, high-performance polymers are good alternatives to overcome these problems. In this study, agarose stearate (AS) with emulsifying, thickening, and gel properties was synthesized. Surfactant-free cosmetic formulations were successfully prepared from AS and carbomer940 (CBM940) mixed systems. The correlation of rheological parameter with skin feeling was determined to study the usability of the mixed systems in cosmetics. Based on rheological analysis, the surfactant-free cosmetic cream (SFC) stabilized by AS-carbomer940 showed shear-thinning behavior and strongly synergistic action. The SFC exhibited a gel-like behavior and had rheological properties similar to commercial cosmetic creams. Scanning electron microscope images proved that the AS-CBM940 network played an important role in SFC’s stability. Oil content could reinforce the elastic characteristics of the AS-CBM940 matrix. The SFCs showed a good appearance and sensation during and after rubbing into skin. The knowledge gained from this study may be useful for designing surfactant-free cosmetic cream with rheological properties that can be tailored for particular commercial cosmetic applications. They may also be useful for producing medicine products with highly viscous or gel-like textures, such as some ointments and wound dressings.  相似文献   
10.
合理利用蜂花粉资源,必须充分开发蜂花粉的各类系列产品和对蜂花粉进行综合利用。通过实践,作者认为,人们可以利用蜂花粉发展四大系列产品:化妆品类,营养食品类,保健食品类和饮料类。  相似文献   
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