scholarly journals Maintaining postharvest quality of cold stored ‘Hass’ avocados by altering the fatty acids content and composition with the use of natural volatile compounds - methyl jasmonate and methyl salicylate

2017 ◽  
Vol 97 (15) ◽  
pp. 5186-5193 ◽  
Author(s):  
Marcin Glowacz ◽  
Malick Bill ◽  
Peter P Tinyane ◽  
Dharini Sivakumar
2019 ◽  
pp. 501-504
Author(s):  
M.J. Giménez ◽  
A. Martínez-Esplá ◽  
S. Castillo-Gironés ◽  
J.M. Valverde ◽  
D. Martínez-Romero ◽  
...  

LWT ◽  
2019 ◽  
Vol 111 ◽  
pp. 117-124 ◽  
Author(s):  
Ahmet Ozturk ◽  
Kenan Yildiz ◽  
Burhan Ozturk ◽  
Orhan Karakaya ◽  
Sefa Gun ◽  
...  

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 943
Author(s):  
Francesca Piazzolla ◽  
Maria Luisa Amodio ◽  
Sandra Pati ◽  
Giancarlo Colelli

The aim of the study was to compare the quality of table grapes (cv. Italia) held on the vine compared to grapes stored in cold rooms with or without modified-atmosphere packaging (MAP). The grapes were harvested from 12 plants in 2 vineyards in the same area, differing for the age of the plant. Four- and a fourteen-year-old vines were cultivated with the “Apulia tendone” system. After the first harvest, grapes were divided into small clusters and used for storage treatments in air and in MAP. Samples of 400 g were packaged in polypropylene (PP) trays sealed with a polypropylene/polyamide (PP/PA) film with 20% CO2 in air. MAP and control samples were then stored in the same cold room at 0 °C. Initially and after 8, 21, and 28 days, grapes stored in air and MAP were compared to fresh harvested grapes, stored on the plants. Quality attributes included color, texture, maturity index, phenols, antioxidant activity, sugars, organic acids, sensory parameters, and volatile compounds. The results obtained demonstrated that grapes held on the plant and in MAP showed better quality in terms of appearance scores compared to grapes stored in air. In particular, the application of high CO2 contributed to reduce the deterioration rate of the clusters, minimizing weight loss, and delaying degradation processes, and this particularly for grapes from the 14-year-old vine, where grapes held on the plant degraded faster than grapes in the younger vines. Most volatile compounds did not change their concentration with the storage treatment, except for ethyl acetate and ethanol, which increased in MAP at the end of storage, and to some compound responsible for green odor. In conclusion, keeping the grapes on the plant can be considered a good agronomic practice to preserve the quality, whereas MAP can be applied to better maintain postharvest quality of the product throughout storage and distribution.


Author(s):  
Deep Lata ◽  
Anusree Anand ◽  
Burhan Ozturk ◽  
Riadh Ilahy ◽  
Md. Shamsher Ahmad ◽  
...  

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 766
Author(s):  
José Luis Guzmán ◽  
Manuel Delgado-Pertíñez ◽  
María José Beriáin ◽  
Rafael Pino ◽  
Luis Ángel Zarazaga ◽  
...  

We analysed how replacing cereal concentrates with dehydrated orange pulp (DOP) in the diet of mother goats affects the meat quality of suckling kids. Three experimental diets for mother goats were designed. The DOP-0 diet contained commercial concentrates and alfalfa hay. In the DOP-40 and DOP-80 diets, 40% and 80% (respectively) of the cereal in the concentrate was replaced with pellets of DOP (the alfalfa hay component was unchanged). We evaluated the chemical composition, texture, water holding capacity, colour, fatty acids (FAs) profile, volatile compounds, and sensorial appraisal of the meat from 30 male suckling kids (cold carcass weight 4.74 kg, 4.82 kg, and 4.65 kg for DOP-0, DOP-40, and DOP-80, respectively) of the Payoya breed (n = 10 for each diet). Meat from kids in the DOP-40 and DOP-80 groups exhibited characteristics favourable for human health, including the meat’s thrombogenicity index, PUFA/SFA ratio (0.60 index), and n-6 PUFA/n-3 PUFA ratio (approximately 7.50). The meat also exhibited reduced MUFA content (around 460 mg/100 g fresh meat). An increase in ethyl furan, dimethyl disulphide and heptane was observed in grilled meat from goats that were fed using DOP. The inclusion of DOP in goat feed improved consumers’ sensory appreciation of the kid’s meat.


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