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| Ma,YQ; Wang,X; Gao,SH; Zhang,J. |
| The conditions for extracting polysaccharides from sweet corncobs (SCP) were studied. Four parameters (ratio of water to raw material, compound enzyme concentration, temperature of enzymolysis and duration of enzymolysis) affecting the extraction of SCP were optimized using response surface methodology (RSM). Under the optimized conditions, the yield of SCP was 17.58 %. SCP had inhibitory effects on α-amylase and α-glucosidase activities, and the IC50 was 20.91 mg/mL and 12.47 mg/mL. SCP may therefore have prevention and treatment efects on postprandial hyperglycemia in diabetes. The inhibitory effects of SCP were improved after fractionation, and were strongest in the fraction SCP80. The fraction of SCP belong to β-glycosides... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sweet corncobs Polysaccharides α -Glucosidase inhibition. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000100011 |
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| Zhang,J; Peng,W; Tang,W; Wang,M. |
| ABSTRACT This paper examined the properties of goose eggshells to determine possible areas of improvement in egg transport and storage. First, we measured goose egg sizes and performed statistical tests, and found that the major axis, minor axis, and egg-shape index presented normal distribution. Eggshell thickness first increased and then decreased from the blunt end to the sharp end. Second, the shape of individual goose eggshell was measured using a 3D scanner. Volume equation, surface equation, and contour function of goose eggshell shape were obtained, exhibiting a highly symmetrical structure. Finally, goose eggs were compressed along their major and minor axes between two plates. Breaking strength was highly dependent on the shape index. A crack was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Goose egg; Shape index; Contour function; Breaking strength; Failure mode. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000300455 |
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| Liu,SK; Niu,ZY; Min,YN; Wang,ZP; Zhang,J; He,ZF; Li,HL; Sun,TT; Liu,FZ. |
| This study was undertaken to assess dietary crude protein (CP) concentration for optimum growth performance and carcass characteristics of Lueyang black-boned chicken. In total, six hundred 42-day-old Lueyang black-boned chicks were randomly assigned to five treatments, each with six replicate pens with ten males and ten females. The birds fed experimental diets with different levels of protein concentration of 120, 140, 160, 180 and 200 g kg-1 from seven to twelve weeks of age respectively. On day of 84, weight gain, feed intake, and feed:gain ratio were measured, and two chickens (one male and one female) close to the average weight of all birds in each treatment were selected from each pen and sacrificed to evaluate carcass traits and selected serum... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude protein; Growth performance; Indigenous fowl; Lueyang black-boned chicken. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100103 |
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