Repository logo
 
No Thumbnail Available
Publication

Manufacture of bioactive peptide-rich concentrates from whey: characterization of pilot process

Use this identifier to reference this record.
Name:Description:Size:Format: 
AI73.pdf431.57 KBAdobe PDF Download

Advisor(s)

Abstract(s)

This work was focused on the manufacture, at pilot scale, of cow whey protein and peptide concentrates, using selective filtration techniques—associated with hydrolysis brought about by proteolytic enzymes from Cynara cardunculus aqueous extracts, using as (optimal) conditions an enzyme/substrate ratio of 1.6% v/v, a pH of 5.2, a temperature of 55 C and an incubation time of 7 h. The profiles of proteins and peptides were assessed by liquid chromatography and electrophoresis; ca. 87% of a-lactalbumin was hydrolyzed, but essentially no degradation of b-lactoglobulin (b-Lg) was observed. A bioactive peptide concentrate, its fraction below 3 kDa and a b-Lg-rich fraction were obtained as final products, containing ca. 73, 43 and 91% w/w protein (on a total solid mass basis). All these fractions were low in lactose and salt, and their microbial loads were reduced. Said fractions are high added-value products, so they can be used as nutritional and functional ingredients—thus yielding an economically viable alternative for upgrade of whey.

Description

Research Note

Keywords

Process engineering Whey upgrade Novel peptide-rich product Antihypertensive features

Citation

TAVARES, Tânia G. ...[et al] - Manufacture of bioactive peptide-rich concentrates from whey: characterization of pilot process. Journal of Food Engineering. ISSN 0260-8774. Vol. 110, n.º 4 (2012), p. 547-552

Research Projects

Research ProjectShow more

Organizational Units

Journal Issue

Publisher

Elsevier

CC License

Altmetrics