公开(公告)号：US20060117999A1

公开(公告)日：2006-06-08

申请号：US11003250

申请日：2004-12-03

申请人： Pushpito Ghosh ,  Arup Siddhanta ,  Kamalesh Prasad ,  Ramavatar Meena ,  Amit Bhattacharya

发明人： Pushpito Ghosh ,  Arup Siddhanta ,  Kamalesh Prasad ,  Ramavatar Meena ,  Amit Bhattacharya

IPC分类号： C08L3/02

CPC分类号： C08B37/0042 ,  C08J5/18 ,  C08J2305/00 ,  C08L5/00 ,  C08L5/12 ,  C08L2666/02

摘要： The present invention relates to use of inexpensive semi-refined kappa carrageenan as a seaweed polysaccharide in preparation of tough, biodegradable films exhibiting improved performance over films obtained from refined kappa carrageenan. The formulation requires no gelling salt and the only other essential components of the film are glycerol and water, the former being used as plasticizer as reported in the prior art. The films can be recycled and reprocessed if required. The performance of the films can be further enhanced by incorporating polyvinyl alcohol that lends toughness and clarity as also natural rubber latex that imparts greater elasticity and barrier properties. Films of optimum composition can be pulse heat sealed immediately after casting and used for preparation of soft capsules and pouches. It is possible to store solvents and oils in the pouches. In view of the more eco-friendly processing of semi-refined kappa carrageenan compared to refined kappa carrageenan, films made with the former would also effectively be “greener”.

摘要翻译： 本发明涉及廉价的半精制卡波卡拉胶作为海藻多糖的用途，用于制备韧性可生物降解的膜，其表现出从精制的卡拉卡拉胶获得的薄膜的性能改善。 制剂不需要胶凝盐，膜的唯一其它基本组分是甘油和水，前者被用作现有技术中报道的增塑剂。 如果需要，这些胶片可以回收再利用。 通过加入提供韧性和透明度的聚乙烯醇以及赋予更大弹性和阻隔性能的天然橡胶胶乳，可以进一步提高膜的性能。 最佳组成的膜可以在铸造后立即进行脉冲热封，并用于制备软胶囊和小袋。 可以将溶剂和油储存在袋中。 鉴于与精制卡波卡拉胶相比，半精制卡波卡拉胶更加环保的加工，与前者相比，电影也将更加“绿化”。

公开(公告)号：US20050267296A1

公开(公告)日：2005-12-01

申请号：US10858599

申请日：2004-06-01

申请人： Arup Siddhanta ,  Ramavatar Meena ,  Kamalesh Prasad ,  Bharatkumar Ramavat ,  Pushpito Ghosh ,  Karuppanan Eswaran ,  Sangaiya Thiruppathi ,  Vaibhav Mantri

发明人： Arup Siddhanta ,  Ramavatar Meena ,  Kamalesh Prasad ,  Bharatkumar Ramavat ,  Pushpito Ghosh ,  Karuppanan Eswaran ,  Sangaiya Thiruppathi ,  Vaibhav Mantri

IPC分类号： C08B37/04

CPC分类号： C08B37/0039 ,  C08B37/0003

摘要： The present invention relates to a simple, direct and cost-effective process for the preparation of agarose of high gel strength and low gelling temperature from naturally occurring or cultivated Gracilaria spp. more particularly Gracilaria dura, said process comprising steps of pre-treating the dry seaweed with alkali, rinsing the pre-treated seaweed until the washing shows a pH ranging between 7 and 8, adding water, autoclaving to obtain extractive, treating the extractive with charcoal and Celite to obtain hot extractive, vacuum-filtering the hot extractive over a Celite bed, freezing the filtrate into a mass and thawing the mass, redissolving the mass in water by heating in an autoclave, repeating the freeze-thaw cycle, straining the product to remove thawed liquid and thereafter squeezing to expel residual liquid to the extent possible to obtain agarose, and an agarose thereof.

摘要翻译： 本发明涉及一种简单，直接和经济有效的方法，用于制备天然存在或培养的江ia属的高凝胶强度和低凝胶化温度的琼脂糖。 所述方法包括以下步骤：用碱对干燥的海藻进行预处理，冲洗预处理的海藻直到洗涤显示pH范围在7至8之间，加入水，高压灭菌以获得萃取物，用木炭处理萃取物 和硅藻土以获得热萃取，在硅藻土床上真空过滤热萃取物，将滤液冷冻成块并解质，通过在高压釜中加热将物质重新溶解在水中，重复冻融循环，使产物变形 以除去解冻的液体，然后挤压以尽可能排出残留液体以获得琼脂糖及其琼脂糖。