Rice Starch
Mostrando 1-12 de 81 artigos, teses e dissertações.
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1. CONTRIBUTION OF ENZYMATIC METHOD FOR ANALYZING SUCROSE AND STARCH IN TRADITIONAL CHINESE LIME- AND EARTH-BASED MORTARS
Brown sugar and sticky rice were frequently used as organic additives in Chinese mortars. This study applied enzymatic spectrophotometric methods to identify sucrose and starch contents in traditional Chinese lime- and earth-based mortars. The focus was to understand and evaluate the qualitative detection capacity of enzymatic method in mortars, by first app
Quím. Nova. Publicado em: 20/07/2020
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2. Evaluation of yeast culture and direct-fed microbial on gut histology and serum components of broilers challenged with suboptimal diets under heat stress
ABSTRACT. The use of antibiotics in feed for growth promotion has been restricted in many countries, thus it is of interest to investigate potential alternatives for enhancing growth performance in birds. An experiment was carried out to evaluate the concurrent use of prebiotic and probiotic on gut histology and some blood chemicals of broiler chickens dur
Acta Sci., Anim. Sci.. Publicado em: 24/10/2019
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3. Effect of rice variety and milling fraction on the starch gelatinization and rheological properties of rice milk
Abstract This study aimed to investigate the rheological properties of rice milk produced from raw rice including rice varieties and milling fractions. Rice milk was prepared from two rice varieties, which were Arhent (long grain) and Bengal (medium grain) using brown, head and broken fractions of the two cultivars used. Gelatinization temperatures for each
Food Sci. Technol. Publicado em: 18/04/2019
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4. A perfect functional marker for the gene of intermediate amylose content Wx-in in rice (Oryza sativa L.)
Abstract The amylose content (AC) of rice is a key determinant of the grain cooking and eating quality. The Waxy (Wx) gene, which encodes granule-bound starch synthase I (GBSSI), is the major gene controlling AC in rice. The A - C substitution in exon 6 (Ex6A/C) alters the amino acid codon from serine to tyrosine and is associated with intermediate-AC rice (
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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5. Physical and chemical characteristics of cheese bread, using fermented broken rice
Abstract Development of new food products, taking as raw material the subproducts obtained during industrial process become an economic and nutritious alternative, since these are usually discarded, caning be a significant nutritional source good. This research aimed to develop cheese bread using fermented broken rice instead of sour starch in four different
Food Sci. Technol. Publicado em: 26/10/2017
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6. Syneresis and chemical characteristics of fermented rice extract with probiotic bacteria and waxy maize starch
Abstract The objective of this work was to elaborate fermented extracts using rice bran and broken rice grains (proportion 8:92) with probiotic bacteria and different concentrations of waxy maize starch (WMS) in order to obtain products with low level of syneresis and desirable physical-chemical characteristics, and to evaluate the content of phenolic compou
Food Sci. Technol. Publicado em: 21/09/2017
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7. Effects of surface proteins and lipids on molecular structure, thermal properties, and enzymatic hydrolysis of rice starch
Abstract Rice starches with different amylose contents were treated with sodium dodecyl sulfate (SDS) to deplete surface proteins and lipids, and the changes in molecular structure, thermal properties, and enzymatic hydrolysis were evaluated. SDS treatment did not significantly change the molecular weight distribution, crystalline structure, short-range orde
Food Sci. Technol. Publicado em: 08/05/2017
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8. Retrogradation of heat-gelatinized rice grain in sealed packaging: investigation of moisture relocation
Abstract The aggregation of water molecules inside heat-gelatinized rice grain due to retrogradation of the grain was investigated by textural change and scanning electron microscopy (SEM) analysis of cooked grains after storage at 11 °C in a sealed package. Relaxation tests using a disc-type tip showed an increase in hardness (strength) of the cooked grain
Food Sci. Technol. Publicado em: 21/07/2016
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9. Nanocellulose Produced from Rice Hulls and its Effect on the Properties of Biodegradable Starch Films
Rice hull is a residue from agro-industry that can be used to produce nanocellulose. We produced nanocellulose from rice hulls through bleaching (with a 5% NaOH solution followed by a peracetic acid solution) and acid hydrolysis at a mild temperature (45ºC) followed by ultrasonication. We investigated the microstructure, crystallinity and thermal stability
Mat. Res.. Publicado em: 12/02/2016
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10. Agrowaste-based Polyhydroxyalkanoate (PHA) production using hydrolytic potential of Bacillus thuringiensis IAM 12077
The study identified the innate enzymatic potential (amylase) of the PHB producing strain B.thuringiensis IAM 12077 and explored the same for cost-effective production of PHB using agrowastes, eliminating the need for pretreatment (acid hydrolysis and/or commercial enzyme). Comparative polyhydroxyalkanoate (PHA) production by B. thuringiensis IAM 12077 in bi
Braz. arch. biol. technol.. Publicado em: 2014-02
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11. Characterization of new sources of derivative starches as wall materials of essential oil by spray drying
Starch derivatives of taro (Colocasia esculenta L. Schott) and rice were characterized as wall materials of orange oil (d-limonene) by spray drying. Native starches were initially hydrolyzed with HCl and then esterified. Succinylated starches were modified using a conventional method in a slurry and were extruded; whereas, the phosphorylated starches were mo
Food Sci. Technol. Publicado em: 2013-12
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12. Preparação e caracterização de termoplásticos a partir de amido de arroz / Preparation and characterization of thermoplastic from rice starch
O presente trabalho teve como proposta a preparação de amidos termoplásticos (TPS) e compósitos a partir de amido de arroz e subprodutos do processo de beneficiamento do arroz, no qual resulta em 20% de palha e 14% de grãos quebrados. Estudou-se o amido de arroz como nova fonte para preparação de termoplásticos, avaliou-se o efeito da incorporação
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/05/2012