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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Comparison between freeze and spray drying to obtain powder Rubrivivax gelatinosus biomass

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Author(s):
Edson Francisco do Espírito Santo [1] ; Leandro Kanamaru Franco de Lima [2] ; Ane Pamela Capucci Torres [2] ; Gabriela de Oliveira [3] ; Elisa Helena Giglio Ponsano [2]
Total Authors: 5
Affiliation:
[1] Universidade Estadual Paulista. Faculdade de Medicina Veterinária. Departamento de Apoio, Produção e Saúde Animal - Brasil
[2] Univ Estadual Paulista, Fac Vet Med, Programa Posgrad Ciencia Anim, Lab Alimentos, Dept Apoio Prod & Saude Anim, BR-16050680 Aracatuba, SP - Brazil
[3] Univ Estadual Paulista, Fac Vet Med, BR-16050680 Aracatuba, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: FOOD SCIENCE AND TECHNOLOGY; v. 33, n. 1, p. 47-51, 2013-02-25.
Abstract

The use of colorants in products of animal origin is justified by the improvement in the color of foods since this attribute is considered a quality criterion. These additives can be produced using industrial effluents as substrates and appropriate organisms, such as Rubrivivax gelatinosus. Oxycarotenoids represent a class of carotenes responsible for the pigmentation of animals and vegetables. R. gelatinosus grows in fish industry effluent with the resulting production of a bacterial biomass containing oxycarotenoids. The purpose of this study was to compare the use of two drying processes - spray and freeze drying - to obtain powder biomass in terms of the process parameters (yield, productivity, and product recovery) and the product characteristics (color, proximate composition, and oxycarotenoids). No difference was detected in the yield between these techniques, while productivity was higher using spray drying. Higher product recovery and moisture were achieved with freeze drying, while ash was higher with spray drying. The freeze dried biomass was redder, darker and less saturated than the spray dried biomass. No difference in oxycarotenoids was detected between the biomasses. Although it results in lower recovery rate, spray drying was faster and more productive, and it provided the same yield as freeze drying, which makes it the method of choice for obtaining R. gelatinosus biomass. (AU)

FAPESP's process: 09/12964-9 - Comparison of techniques in the production of Rubrivivax gelatinosus biomass
Grantee:Edson Francisco Do Espírito Santo
Support Opportunities: Scholarships in Brazil - Master