Proximate Analysis
Mostrando 25-36 de 88 artigos, teses e dissertações.
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25. Study on the pozzolanic activity of sugar cane straw ash produced using different pretreatments
This work systematically describes a laboratory study on different pretreatments of sugar cane straw to produce pozzolanic ash. Two procedures were used to accelerate the hydrolysis of celluloses and hemicelluloses and remove metallic impurities present in significant levels in sugar cane straw: hot water washing and acid leaching. Proximate analysis by ther
Quím. Nova. Publicado em: 2017-04
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26. Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments
ABSTRACT Forty Nelore cattle were used to evaluate the effects of supplementation with different antioxidants on carcass characteristics and meat quality of feedlot cattle. Animals were fed Brachiaria brizantha hay and subjected to five treatments (control and four antioxidants: zinc, selenium, vitamin E, and selenium + vitamin E). After a 105-day feeding pe
R. Bras. Zootec.. Publicado em: 2017-02
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27. Characterization and evaluation of sensory acceptability of ice creams incorporated with beta-carotene encapsulated in solid lipid microparticles
Abstract The feasibility of incorporating beta-carotene-loaded solid lipid microparticles (BCSLM) into vanilla ice creams was investigated, through the physico-chemical characterization and evaluation of sensory acceptability of the products products. The BCSLM were produced with palm stearin as the lipid phase, hydrolyzed soy protein isolate as the surfacta
Food Sci. Technol. Publicado em: 01/12/2016
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28. GC×GC-TOF/MS Analysis of Bio-Oils Obtained from Pyrolysis of Acuri and Baru Residues
Bark of acuri and endocarp of baru are residues generated during the processing of these fruits. One alternative to consider is the pyrolysis of these materials to generate bio-oils, opening the perspective for the production of environment-friendly, added value products. Samples of acuri and baru were subjected to laboratorial scale pyrolysis. At the optimi
J. Braz. Chem. Soc.. Publicado em: 2016-11
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29. Effects of Different Numbers of Fungicide Application on the Proximate Composition of Soybean
This study aimed to evaluate the effect of strobilurin (pyraclostrobin) + triazole (epoxiconazole) fungicides application on the proximate composition of soybeans. Six treatments of varying numbers of fungicide applications following soybean germination, termed T1 (control), T2, T3, T4, T5, and T6, were assessed for this experiment. Based on the results, the
J. Braz. Chem. Soc.. Publicado em: 2016-10
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30. Physicochemical and sensory characteristics of snack bars added of jerivá flour (Syagrus romanzoffiana)
Abstract The objective of this work was to characterize promising fruit crops and to explore opportunities for the sustainable and commercial use of flours obtained from fruits as an ingredient in snack bars. The fruit selected was Jeriva, which grow from north to eastern Brazil, and can be found in the Savanna biome. The fruit flour was obtained from dehydr
Food Sci. Technol. Publicado em: 20/06/2016
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31. Influence of natural and synthetic carotenoids on the color of egg yolk
ABSTRACT Carotenoids are incorporated into the diet of laying hens in order to modify the yolk color. A natural source of carotenoids in tropical countries is annatto, which could be used in the diets of hens. This study aimed to evaluate the addition of natural (annatto) and synthetic carotenoids to the diet of laying hens (commercial and alternative) and t
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-06
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32. Chemical composition and nutritive value of hot pepper seed (Capsicum annuum) grown in Northeast Region of China
Chemical composition and nutritive value of hot pepper seeds (Capsicum annuum) grown in Northeast Region of China were investigated. The proximate analysis showed that moisture, ash, crude fat, crude protein and total dietary fiber contents were 4.48, 4.94, 23.65, 21.29 and 38.76 g/100 g, respectively. The main amino acids were glutamic acid and aspartic aci
Food Sci. Technol. Publicado em: 09/10/2015
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33. Length-weight relationship and prediction equations of body composition for growing-finishing cage-farmed Nile tilapia
The objective of the present study was to develop models for predicting live weight from the length-weight relationship and body composition of Nile tilapia. A total of 3,000 juvenile fish (initial weight = 28.6±4.16 g and standard length = 13.8±0.16 cm) were distributed into three circular cages (12 m3 each). The fish were hand-fed extruded diets containi
R. Bras. Zootec.. Publicado em: 2015-04
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34. Evaluation of jumbo squid (Dosidicus gigas) byproduct hydrolysates obtained by acid-enzymatic hydrolysis and by autohydrolysis in practical diets for Pacific white shrimp (Litopenaeus vannamei)
The marine bioprocessing industry offers great potential to utilize byproducts for fish meal replacement in aquafeeds. Jumbo squid is an important fishery commodity in Mexico, but only the mantle is marketed. Head, fins, guts and tentacles are discarded in spite of being protein-rich byproducts. This study evaluated the use of two jumbo squid byproduct hydro
Food Sci. Technol. Publicado em: 2014-09
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35. Reproductive responses and productive characteristics in ewes supplemented with detoxified castor meal for a long period
The objective of the present study was to evaluate the effects of supplementation with detoxified castor meal (DCM) in the diet of ewes during pregnancy, partum, and post-partum on the weight development of their offspring and at slaughter. The study included 56 ewes with synchronized estrus that were naturally mated. At the beginning of pregnancy and in pos
R. Bras. Zootec.. Publicado em: 2014-08
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36. Effect of salinity on performance and body composition of Pacific white shrimp juveniles reared in a super-intensive system
The objective of this study was to evaluate the effect of salinity on the culture water quality, performance and body composition of Litopenaeus vannamei juveniles (1.16±0.30 g) reared for 36 days in a super-intensive system without water exchange at salinities of 4, 16 and 32‰. Groups of 200 animals (140/m2) were stocked, with three replicates, in nine f
R. Bras. Zootec.. Publicado em: 2014-07