scholarly journals Influence of Cold Storage on the Bioactivity Properties and the Quality of the Juice of Moro Blood Orange (<i>Citrus sinensis</i> (L.) Osbeck)

2019 ◽  
Vol 10 (01) ◽  
pp. 24-37 ◽  
Author(s):  
Maísa Lamounier Magalhães ◽  
Luiz Carlos De Oliveira Lima ◽  
Allan da Silva Lunguinho ◽  
D. A. De Carvalho Selvati Rezende ◽  
Vanuzia Rodrigues Fernandes Ferreira ◽  
...  
Keyword(s):  
Cold Storage ◽  
Citrus Sinensis ◽  
Blood Orange

Ascorbic acid incorporated with walnut green husk extract for preserving the postharvest quality of cold storage fresh walnut kernels

2019 ◽  
Vol 245 ◽  
pp. 193-199 ◽  
Author(s):  
Asaad Habibie ◽  
Navid Yazdani ◽  
Mahmoud Koushesh Saba ◽  
Kourosh Vahdati
Keyword(s):  
Ascorbic Acid ◽  
Cold Storage ◽  
Postharvest Quality

Comparison of Different Peptidase Substrates for Evaluation of Microbial Quality of Aerobically Stored Meats

2000 ◽  
Vol 63 (10) ◽  
pp. 1447-1449 ◽  
Author(s):  
L. STEPANIAK
Keyword(s):  
Enzymatic Activity ◽  
Correlation Coefficient ◽  
Cold Storage ◽  
Microbial Quality ◽  
Microbial Cells ◽  
Clear Advantage ◽  
Yellow Color ◽  
Meat Samples

Different aminopeptidase and endopeptidase substrates were assessed for the detection of enzymatic activity of microorganisms collected from the surface of aerobically cold-stored pork and beef. The most sensitive substrates were fluorogenic Ala-7-amino-4-methylcoumarin (Ala-AMC) or Leu-AMC and colorogenic Ala-p-nitroanilide (Ala-pNA). Activity on natural oligopeptides, e.g., bradykinin or αs1 casein fragment 1 to 23, was very low. The correlation coefficient (r) between log surface counts of 66 meat samples and log fluorescence or absorbance after incubation of surface microbial cells for 2 h with Ala-AMC, Leu-AMC, and Ala-pNA was 0.89, 0.83, and 0.82, respectively. A distinct yellow color was obtained with Ala-pNA when the surface count was ∼106 CFU/cm2. Although correlation and sensitivity was better, no clear advantage is obtained with the use of the fluorogenic Ala-AMC or Leu-AMC instead of Ala-pNA, a substrate proposed by Alvarado et al. (J. Food Sci. 57:1330, 1992) for rapidly assessing the microbial quality of refrigerated meat. The correlation coefficient (r) between time of cold storage and surface count was 0.69.

scholarly journals Performance of Minneola tangelo trees grafted over six rootstocks in Colombia Tropical Lowland (1997-2010)

2017 ◽  
Vol 66 (3) ◽  
pp. 397-402
Author(s):  
Hans Chaparro ◽  
David Ricardo Hernández ◽  
Diana Mayerly Mateus ◽  
Javier Orlando Orduz Rodriguez
Keyword(s):  
Fruit Quality ◽  
Citrus Sinensis ◽  
Productive Efficiency ◽  
Poncirus Trifoliata ◽  
Tree Size ◽  
The Other ◽  
Citrus Paradisi ◽  
Tropical Lowland ◽  
Citrus Orchards

‘Cleopatra’ tangerine (Citrus reshni hort. ex Tanaka) is a commonly used rootstock in the piedmont of Meta department, Colombia for establishing of commercial citrus orchards. Have allowed a late production entrance rootstock and produced big plants when grafted with tangelo ‘Minneola’ (C. reticulata Blanco x C. paradise Macf), decreasing the productive efficiency in plants and hard crop practices. The evaluated performance were as follows:  tree size, productive efficiency and fruit quality of tangelo ‘Minneola’ grafted in six rootstocks. It found that the cumulated production of 11 years was better with Citrumelo ‘Swingle’ (Citrus paradisi Macf. × Poncirus trifoliata (L.) Raf) with 1388.3 kg tree-1, followed by ‘Cleopatra’ (Citrus reshni hort. ex Tanaka) with 893.2 kg.tree-1, in last place was ‘Carrizo’ (Citrus sinensis Osb. × Poncirustrifoliata (L.) Raf) with 182.9 kg tree-1. The other rootstocks, had a medium production. The greatest height and canopy value, was found with ‘Cleopatra’ without significant differences with Citrumelo ‘Swingle’. In fruit quality no significant differences occurred.

Sign in / Sign up

Export Citation Format

Share Document