000 03522nas a2200397 a 4500
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008 160427s2013 th uu|m rtt 0| a1eng d
035 _a.b12163181
099 9 _aAIT Thesis no.FB-13-02
100 1 _aSadiq, Muhammad Bilal
245 1 0 _aCarboxymethylatation of kappa carrageenan and evaluation of physicochemical and antibacterial activities
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2013
300 _a1 online resource (59 leaves) :
_bill. (some col.) +
_e1 online resource
490 1 _aThesis ;
_vno.FB-13-02
500 _aSubmitted in partial fulfillment of the requirements for the degree of Master of Science in Food Engineering and Bioprocess Technology, School of Environment, Resources and Development
502 _aThesis (M. Sc.) - Asian Institute of Technology, 2013
520 _aThe aim of this study was to modify the kappa carrageenan(seaweed sulphated polysaccharides)to carboxymethylatedkappa carrageenan in order to achieve the kappa carrageenan derivative with modified physicochemicaland biological properties. The carboxymethylatedkappa carrageenanswere synthesized at differentconditions of temperature, concentration of alcohol,sodium hydroxide and proportion of chloroacetic acid. The temperaturesand concentrationsof each componentproduce different degree of biological activityforcarboxymethylated kappa carrageenan. The introduction of carboxymethyl group improved the antimicrobial,antioxidant and gelling ability of kappa carrageenan. The formation of carboxymethylated kappa carrageenan was confirmed by using theFouriertransform infrared spectroscopy (FTIR)analysis of samples. The antimicrobial effectsof carboxymethylated kappa carrageenan indicated that they were effective and had potential to inhibit the growth of both gram positive(Lactobacillus plantarum and Staphylococcus aureus)and gram negative(E. coli and Salmonella)bacteria.The carboxymethylated kappa carrageenan with improved antimicrobial, antioxidant, and rheological profile can be used in food and pharmaceutical industries and can reduce the use of various synthetic chemical preservativewhich are associated with various health hazards.
650 0 _aAnti-infective agents
700 1 _aAnal, Anil Kumar,
_eChairperson
700 0 _aAthapol Noomhorm,
_eExamination Committee
700 0 _aMuanmai Apintanapong,
_eExamination Committee
710 2 _aHigher Education Commission (HEC) Pakistan,
_eScholarship Donor
710 2 _aAIT Fellowship,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. no.FB-13-02
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B02816
907 _a.b12163181
_bmnait
_cz
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962 _a000:001:PDF:b1216318:002491:0:0:0:0:0:0
_tAbstract--AIT Thesis no.FB-13-02
_vn
945 _lmnait
945 _lmnait
942 _c20
909 _aBarcode : 30050120674253
_bCREATED : 2016-04-27
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909 _aBarcode : 30050120671283
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