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001-es BibID:BIBFORM093926
Első szerző:Takácsné Hájos Mária (kertészmérnök)
Cím:The effect of drying process on the pigment content and composition of table beet varieties / Takács-Hájos M.
Dátum:2011
ISSN:1585-0404
Megjegyzések::The food industry requires natural colouring agents in increasing quantities. Beet root is highly adapted to this purpose with its red (betacyanin) and yellow (betaxanthin) pigments suitable for numerous products. The two pigments are, however, very heat-sensitive depending not only on the method of drying as well. In our experiment we tested 6 table beet varieties with vacuum drying (instrument: Eurovac KIT-150) and obtained very big differences in the suitability of varieties for drying. The less colour loss was measured in Bordó (16.84%), while Rubin and Cylindra indicated 45.15 and 47.18% loss respectively. During the drying raw material with higher colour content produced higher rate of pigment loss (r = 0.880). In our experiment we found adverse effects on colour material and dry matter content in the fresh beet root. The variety with higher solids (mainly sugar) resulted in higher pigment loss (r = -0.847) during the vacuum drying process. Furthermore, we stated that the yellow pigments (betaxanthin) were less heat sensitive during drying than the red (betacyanin) ones. For the production of beet root powder varieties of high pigment content but low water soluble solids content (sugar) are needed.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
table beet
vacuum drying
natural pigment
water soluble solids content
betacyanin
betaxanthin
heat sensitivity
pigment loss
Megjelenés:International Journal of Horticultural Science. - 17 : 4-5 (2011), p. 115-117. -
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