Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis

	Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis
	Li, Haiyan 1,2; Yu, Xingju 1; Jin, Yan 1; Zhang, Wei 1,3; Liu, Yuanling 1
刊名	bioresource technology
	2008-05-01
卷号	99 期号:8 页码:3301-3305
关键词	agar Gracilaria lemaneiformis photobleaching chemical-bleaching photolysis
ISSN号	0960-8524
通讯作者	张卫
产权排序	1;1
英文摘要	the red seaweed, gracilaria lemaneiformis growing as an aquaculture bioremediator along the coasts of liaodong peninsula, china, was investigated for the agar production. an eco-friendly method called agar photobleaching extraction process was developed for the benefit of workers' health and safety of the environment. the native agar (na), alkali-modified agar (aa), chemical-bleached agar (ca) and photobleached agar (pa), which were extracted using different processes, were evaluated for their physical and chemical properties. the pa showed most desirable performances in terms of gel strength, gelling temperature, sulfate content and 3,6-anhydro-l-galactose content. among the different processed agars, pa gel strength was 1913 g/cm(2), the highest among the different processed agars, which increased 8.6% on the basis of the aa. further we applied this new technique to extract agars from gracilaria asiatica, and similar results were obtained with that of g. lemaneiformis. this indicates that the agar photobleaching extraction process is a feasible method for gracilaria species and has a potential application. during the whole agar photobleaching extraction process the pigment content of g. lemaneiformis declined gradually and the toc concentration in photobleaching solution increased along with the increase in the irradiation time. the mechanism of agar photobleaching could be elucidated by the photolysis theory. (c) 2007 elsevier ltd. all rights reserved.
WOS标题词	science & technology ; life sciences & biomedicine ; technology
类目[WOS]	agricultural engineering ; biotechnology & applied microbiology ; energy & fuels
研究领域[WOS]	agriculture ; biotechnology & applied microbiology ; energy & fuels
关键词[WOS]	dissolved organic-matter ; rhodophyta ; carotenoids ; waters ; carbon
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000254072200078
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/99935]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Marine Bioprod Engn Grp, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Flinders Univ S Australia, Sch Med, Dept Med Biotechnol, Bedford Pk, SA 5042, Australia
推荐引用方式 GB/T 7714	Li, Haiyan,Yu, Xingju,Jin, Yan,et al. Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis[J]. bioresource technology,2008,99(8):3301-3305.
APA	Li, Haiyan,Yu, Xingju,Jin, Yan,Zhang, Wei,&Liu, Yuanling.(2008).Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis.bioresource technology,99(8),3301-3305.
MLA	Li, Haiyan,et al."Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis".bioresource technology 99.8(2008):3301-3305.