Oxidation of beta-carotene by bovine milk lactoperoxidase-halide-hydrogen peroxide systems

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Fältnamn	Indikatorer	Metadata
000		02072naa a2200301 4500
001		oai:DiVA.org:ri-8811
003		SwePub
008		160908s1986 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-88112 URI
040		a (SwePub)ri
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Ekstrand, Bou RISE,SIK – Svenska livmedelsinstitutet4 aut
245	1 0	a Oxidation of beta-carotene by bovine milk lactoperoxidase-halide-hydrogen peroxide systems
264	1	c 1986
338		a print2 rdacarrier
520		a The halide-mediated peroxidase-catalyzed oxidation of ?-carotene was studied as a model system for lipid peroxidation. Of the halide ions tested, Br-, I-, and SCN- all caused some degree of ?-carotene oxidation at pH 7.0 and 4.4. No oxidation was observed with Cl-, however, which is consistent with Cl- not being a substrate for lactoperoxidase. The ?-carotene oxidation caused by the lactoperoxidase-I--H2O2 system was pH dependent, the rate of oxidation being 100-fold higher at pH 4.4 than at pH 7.0. When both I- and SCN- were present, the oxidation rate was reduced. At least partially, this interference between the two substrates was due to competition for the substrate-binding sites on the enzyme. © 1986 American Chemical Society.
650	7	a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Livsmedelsvetenskap0 (SwePub)401032 hsv//swe
650	7	a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Food Science0 (SwePub)401032 hsv//eng
653		a Food Engineering
653		a Livsmedelsteknik
700	1	a Bjorck, L.4 aut
710	2	a RISEb SIK – Svenska livmedelsinstitutet4 org
773	0	t Journal of Agricultural and Food Chemistryg 34:3, s. 412-415q 34:3<412-415x 0021-8561x 1520-5118
856	4	u http://www.scopus.com/inward/record.url?eid=2-s2.0-0041635321&partnerID=40&md5=0eb645ccc1c2653c153f5413f4bf45cd
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-8811

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Av författaren/redakt...: Ekstrand, Bo; Bjorck, L.

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