Effect of emulsifiers on complexation and functional properties of oxidized white sorghum (Sorghum bicolor) starch

2013 ◽  
Vol 57 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Tahira Mohsin Ali ◽  
Abid Hasnain



Author(s):  
D. D. F. Leite ◽  
M. T. Cavalcanti ◽  
A. S. Silva ◽  
M. C. Gonçalves ◽  
M. C. B. M. Almeida

<p>A utilização de sementes germinadas na elaboração de produtos alimentícios com boa qualidade nutricional é uma possibilidade e o sorgo pode se apresentar como alternativa ao consumo dos cereais convencionais. O objetivo deste estudo foi de observar as alterações nos parâmetros físico-químicos da semente de sorgo antes e após o processo de germinação, assim como avaliar as propriedades funcionais indicando suas possíveis utilizações como ingrediente alimentar. As sementes germinadas apresentaram um aumento no teor proteico, passando de 4,32 para 7,20%, além da diminuição no teor de amido e consequente aumento no teor de açúcares redutores. A partir das propriedades funcionais avaliadas, a semente de sorgo germinada apresentou uma boa capacidade de absorção de óleo, podendo ser utilizado como ingrediente para auxiliar na textura e suculência de produtos. A germinação garantiu boa capacidade de formação de espuma e sua estabilidade, podendo ser utilizado como ingrediente em produtos alimentícios de fermentação, como bolos e biscoitos, além de bom agente de formação de gel podendo ser útil em sistemas alimentícios como pudim e lanches, que requerem espessamento e gelificação.</p><p align="center"><strong><em>Properties of sorghum seed Functional (</em></strong><em>Sorghum bicolor<strong> (L.) </strong></em><strong><em>Moench) in natura and germinated</em></strong></p><pre><strong>Abstract: </strong>The use of germinated seeds in the preparation of food products with good nutritional quality is a possibility and sorghum can be presented as an alternative to the consumption of conventional cereals. The objective of this study was to observe the changes in physical and chemical parameters of sorghum seed before and after the germination process, and assess the functional properties indicating their possible use as a food ingredient. Germinated seeds showed an increase in protein content, from 4.32 to 7.20% in addition to the decrease in the starch content and the consequent increase in reducing sugars. From the functional properties evaluated, the germinated sorghum seeds showed a good ability to absorb oil and can be used as an ingredient to aid in texture and juiciness products. Germination ensured good foaming ability and stability, can be used as an ingredient in food products of fermentation, such as cakes and cookies, and good gelling agent may be useful in food systems such as pudding and snacks, which require thickening and gelation.</pre>





2018 ◽  
Vol 6 (7) ◽  
pp. 1933-1939 ◽  
Author(s):  
Manahel Mohammed Ahmed ◽  
Ismat G. Abdalla ◽  
A. M. Salih ◽  
Amro B. Hassan


Author(s):  
OJO Olabimpe Iyabo ◽  
OGUNLADE Ibiyinka ◽  
OLANIPEKUN Abimbola Deola

The effects of sprouting on proximate, mineral composition and functional properties of white sorghum bicolor and pennisetum glaucum were evaluated. The sorghum bicolor and pennisetum glaucum kernels obtained from Kings local market in Akure Ondo State, Nigeria and identified in the department of Agronomy Federal University of Technology, Akure were sorted and divided into two portions. The first portion was soaked for 24 hours after which it was spread on trays lined with doth and kept wet by frequent spraying of water each morning and evening for 2 days. The sprouted maize grains were oven dried at 60°C to constant weight and milled into flour. The second portion was processed into flour without sprouting, using the same method. Each of the portions was analyzed for proximate, mineral compositions and functional properties using standard methods. Sprouting of both sorghum bicolor and pennisetum glaucum grains resulted in significant increase (p<0.05) in crude protein, crude fibre, and ash content. The moisture content of sorghum bicolor increases with sprouting while that of pennisetum glaucum decreases. This decrease in the moisture content of pennisetum glaucum with sprouting implies an increase shelf life. Increase in solubility, water absorption and oil absorption capacity observed with sprouting in both sample helps in increasing the palability of the food The results showed that the sprouting process improved the nutrient composition and enhanced the functional properties of both sorghum bicolor and pennisetum glaucum with the pennisetum glaucum being found to be slightly better in terms of shelf life.





Author(s):  
T. Wichertjes ◽  
E.J. Kwak ◽  
E.F.J. Van Bruggen

Hemocyanin of the horseshoe crab (Limulus polyphemus) has been studied in nany ways. Recently the structure, dissociation and reassembly was studied using electron microscopy of negatively stained specimens as the method of investigation. Crystallization of the protein proved to be possible and X-ray crystallographic analysis was started. Also fluorescence properties of the hemocyanin after dialysis against Tris-glycine buffer + 0.01 M EDTA pH 8.9 (so called “stripped” hemocyanin) and its fractions II and V were studied, as well as functional properties of the fractions by NMR. Finally the temperature-jump method was used for assaying the oxygen binding of the dissociating molecule and of preparations of isolated subunits. Nevertheless very little is known about the structure of the intact molecule. Schutter et al. suggested that the molecule possibly consists of two halves, combined in a staggered way, the halves themselves consisting of four subunits arranged in a square.



2001 ◽  
Vol 268 (6) ◽  
pp. 1739-1748
Author(s):  
Aitor Hierro ◽  
Jesus M. Arizmendi ◽  
Javier De Las Rivas ◽  
M. Angeles Urbaneja ◽  
Adelina Prado ◽  
...  


Author(s):  
Anna Pomés ◽  
Alisa Smith ◽  
Christophe Grégoire ◽  
Lisa Vailes ◽  
L. Arruda ◽  
...  


Sign in / Sign up

Export Citation Format

Share Document