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Titolo:
Hydrothermal processing of barley (cv. Blenheim): Optimisation of phytate degradation and increase of free myo-inositol
Autore:
Bergman, EL; Fredlund, K; Reinikainen, P; Sandberg, AS;
Indirizzi:
Chalmers Univ Technol, Dept Food Sci, SIK, S-40229 Gothenburg, Sweden Chalmers Univ Technol Gothenburg Sweden S-40229 40229 Gothenburg, Sweden Oy Lahden Polttimo AB, FIN-15141 Lahti, Finland Oy Lahden Polttimo AB Lahti Finland FIN-15141 , FIN-15141 Lahti, Finland
Titolo Testata:
JOURNAL OF CEREAL SCIENCE
fascicolo: 3, volume: 29, anno: 1999,
pagine: 261 - 272
SICI:
0733-5210(199905)29:3<261:HPOB(B>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
INVITRO ESTIMATION; IRON AVAILABILITY; ZINC-ABSORPTION; SMALL-INTESTINE; CHROMATOGRAPHY; MYOINOSITOL; PERFORMANCE; FORMULA; HUMANS; TETRAPHOSPHATES;
Keywords:
barley; phytate; myo-inositol; hydrothermal processing; mathematical modelling;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Bergman, EL Chalmersedenv Technol, Dept Food Sci, SIK, Box 5401, S-40229 Gothenburg, Sw Chalmers Univ Technol Box 5401 Gothenburg Sweden S-40229 , Sw
Citazione:
E.L. Bergman et al., "Hydrothermal processing of barley (cv. Blenheim): Optimisation of phytate degradation and increase of free myo-inositol", J CEREAL SC, 29(3), 1999, pp. 261-272

Abstract

Optimal conditions were developed for hydrothermal processing of whole barley kernels (cv. Blenheim) to degrade phytate (myo-inositol hexaphosphate) and to increase the content of free myo-inositol. The hydrothermal treatment comprised of two wet steeps, where lactic acid solution of different concentrations was used, and two dry steeps followed by successive drying. Experiments were performed as a central composite design and evaluated by multiple linear regression. The variables in the experiments were temperature inthe first wet and dry steep (T-1), temperature in the second wet and dry steep (T-2) and lactic acid solution concentration in both wet steeps (C) and mathematical models were developed in these variables. Optimal conditionsfor maximal phytate degradation and for maximal increase of free myo-inositol were T-1 = 48 degrees C, T-2 = 48-50 degrees C and C = 0.8%, at these conditions the amount of phytate was reduced by 95-96% and the free myo-inositol concentration was increased from 0.56 to 2.45 mu mol/g d.m. We conclude that this hydrothermal process can be used to produce a barley product (cv. Blenheim) with a low phytate content and a high level of free myo-inositol. (C) 1999 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 08:52:52