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Protein content maximization of vegetable paste by incorporation of whey through the linear programming: drying and rehydration evaluation.

ABSTRACT: The vegetable paste was optimized by the protein content maximization through incorporation of whey using the linear programming, with linear restrictions functions. The enriched paste was dried in a spouted bed of cone-cylindrical geometry, at different conditions, and the dried powder products were analyzed by the functional, nutritional, bioactive, chemical, thermal and morphological properties and, also its rehydration characteristics were evaluated. The best results were found in the assay performed at inlet drying air temperature of 100 °C and in paste solids concentration of 10% (w/w). In these drying conditions, the values were of protein solubility of 26.5 ± 0.1% (w/w), water holding capacity 10.8 ± 0.1 g g^-1, protein digestibility of 84.9 ± 2.2% (w/w), total phenolic compounds 7.72 ± 0.1 mg_EAG g_sample^-1, antioxidant activity of 75.7 ± 0.2% of DPPH inhibition. The glass transition temperature was in range of 97.3 °C, due to the lactose non-caramelization, this fact aided in the functionality of the bed. The powder morphology presented irregular and rough structure, with particles size lower than 100 μm and, with a low crystallinity index (12.8%). The rehydration constant value was found as 16.5 min^-1, showing the rapidity with that the water diffused into the powder in the most suitable condition.

SUBMITTER: Rocha SF

PROVIDER: S-EPMC6033796 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

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Protein content maximization of vegetable paste by incorporation of whey through the linear programming: drying and rehydration evaluation.

Rocha Silvia F SF Müller Tamires T Castro João V O JVO Lima Heraldo Z HZ Pinto Luiz A A LAA

Journal of food science and technology 20180503 7

The vegetable paste was optimized by the protein content maximization through incorporation of whey using the linear programming, with linear restrictions functions. The enriched paste was dried in a spouted bed of cone-cylindrical geometry, at different conditions, and the dried powder products were analyzed by the functional, nutritional, bioactive, chemical, thermal and morphological properties and, also its rehydration characteristics were evaluated. The best results were found in the assay ...[more]

PMID: 30042570

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Project description:Subspecies nomenclature systems of pathogens are increasingly based on sequence data. The use of phylogenetics to identify and differentiate between clusters of genetically similar pathogens is particularly prevalent in virology from the nomenclature of human papillomaviruses to highly pathogenic avian influenza (HPAI) H5Nx viruses. These nomenclature systems rely on absolute genetic distance thresholds to define the maximum genetic divergence tolerated between viruses designated as closely related. However, the phylogenetic clustering methods used in these nomenclature systems are limited by the arbitrariness of setting intra and intercluster diversity thresholds. The lack of a consensus ground truth to define well-delineated, meaningful phylogenetic subpopulations amplifies the difficulties in identifying an informative distance threshold. Consequently, phylogenetic clustering often becomes an exploratory, ad hoc exercise. Phylogenetic Clustering by Linear Integer Programming (PhyCLIP) was developed to provide a statistically principled phylogenetic clustering framework that negates the need for an arbitrarily defined distance threshold. Using the pairwise patristic distance distributions of an input phylogeny, PhyCLIP parameterizes the intra and intercluster divergence limits as statistical bounds in an integer linear programming model which is subsequently optimized to cluster as many sequences as possible. When applied to the hemagglutinin phylogeny of HPAI H5Nx viruses, PhyCLIP was not only able to recapitulate the current WHO/OIE/FAO H5 nomenclature system but also further delineated informative higher resolution clusters that capture geographically distinct subpopulations of viruses. PhyCLIP is pathogen-agnostic and can be generalized to a wide variety of research questions concerning the identification of biologically informative clusters in pathogen phylogenies. PhyCLIP is freely available at http://github.com/alvinxhan/PhyCLIP, last accessed March 15, 2019.

Dataset Information

Protein content maximization of vegetable paste by incorporation of whey through the linear programming: drying and rehydration evaluation.

Publications

Protein content maximization of vegetable paste by incorporation of whey through the linear programming: drying and rehydration evaluation.

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