Assessment of physico‐chemical and sensory properties of two date ( Phoenix dactylifera L.) cultivars under commercial cold storage conditions

2019 ◽  
Vol 43 (12) ◽  
Author(s):  
Younés Noutfia ◽  
Chakib Alem ◽  
Younes Filali Zegzouti
LWT ◽  
2021 ◽  
pp. 111762
Author(s):  
Ibrahim A. Almusallam ◽  
Isam A. Mohamed Ahmed ◽  
Elfadil E. Babiker ◽  
Fahad Y. Al-Juhaimi ◽  
Ali Saleh ◽  
...  

Agro-Science ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 72-79
Author(s):  
O. Ariyo ◽  
O. Adetutu ◽  
O. Keshinro

Beverage consumption is increasing but rarely used to promote micronutrient intakes in Nigeria. Diversifying the crops in local beverage production could improve dietary diversification and increase nutrients intake. This study determined the nutritional composition, microbial load and consumer acceptability of tiger nut, date and ginger blended beverage. Fresh tiger nuts, date and ginger were processed to formulate four beverage blends in these ratios 100:0:0; 85:10:5; 70:20:10; and 55:30:15. Samples were analysed for proximate, vitamins, minerals, anti-nutrients content and microbiological attributes using standard procedures. Consumer acceptability was determined using a 9-point hedonic scale by 30 untrained panelists. Data were analysed using descriptive statistics, independent t-test and ANOVA at p ≤ 0.05. Moisture, protein, fat, fibre, ash, carbohydrate (mg 100 g–1) and metabolizable energy composition (kCal 100 ml–1) ranged from 80.33-84.78, 0.71-0.8, 2.96-4.94, 0.20-1.63, 0.34-0.44, 9.10-13.63 and 78.2-101.5, respectively. Thiamin, niacin, ascorbic acid and tocopherol composition (mg 100 g–1) ranged from 0.30-0.68, 0.08-0.17, 4.73-8.40, and 7.20-15.31, respectively. Calcium, potassium, phosphorus, and iron contents (mg 100 g–1) ranged from 1.07-6.79, 164.8-259.3, 43.86-47.1, and 6.88-9.26, respectively. Saponin ranged from 0.01-0.05 mg 100 g–1. Number of colonies were negligible after refrigeration for 10 days. Sensory properties ranged from 6.40-6.63, 4.93-6.40, 4.70-7.20, 5.93-6.90, and 5.27-7.17 for appearance, aroma, taste, consistency and general acceptability, respectively. Date and ginger substitution enhance fibre, ash, carbohydrate, and calcium composition, the shelf life and sensory properties of tiger nut beverage, the blends are generally acceptable to consumers and considered safe up to day 10 when refrigerated.


2020 ◽  
Vol 264 ◽  
pp. 110492
Author(s):  
Wadii Abid ◽  
Imen Ben Mahmoud ◽  
Saoussan Masmoudi ◽  
Mohamed Ali Triki ◽  
Stéphane Mounier ◽  
...  

2014 ◽  
Vol 7 (1) ◽  
pp. 59-68
Author(s):  
Khaled M. Youssef ◽  
El-Sayed A. Abd El-Hady ◽  
Salah K. El-Samahy ◽  
Adel A. Shatta

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 534g-535
Author(s):  
Armida Rodriguez-Felix ◽  
Evelia Araiza-Lizarde ◽  
Monica A. Villegas-Ochoa ◽  
Elsa Brineas-Taddei

Physico-chemical and physiological changes of `Flordaprince peach fruits harvested at different maturity stages were evaluated during low temperature storage. Harvested fruits were immediately classified into four different maturity stages based on red-skin color (I, 20%; II, 40%; III, 60%; and IV, 80%). Fruits were stored at 2 C (90% R.H.) for 0, 15, and 30 days. Following cold storage conditions, fruits were transferred to a 20 C room. Physico-chemical and physiological characteristics evaluated during storage included weight loss, firmness, pH, titratable acidity, skin color (hue), total soluble solids, respiration rate, and ethylene production. Weight loss increased (up to 40%) after 27 days storage at 2C. The fruits harvested at maturity stage I showed the lowest weight loss. Flesh firmness decreased significantly during storage at 2 C. Fruits from stages I and II had higher firmness than fruits harvested at stages III and IV. A significant change from green-yellow to red color was observed in fruits of the distinct maturity stages during storage at 20 C.


2017 ◽  
Vol 221 ◽  
pp. 644-649 ◽  
Author(s):  
Fahad Al-Asmari ◽  
Nilesh Nirmal ◽  
Mridusmita Chaliha ◽  
David Williams ◽  
Ram Mereddy ◽  
...  

Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 293
Author(s):  
Zienab F. R. Ahmed ◽  
Fatima Y. Y. Al Shaibani ◽  
Navjot Kaur ◽  
Sajid Maqsood ◽  
Guillermo Schmeda-Hirschmann

“Barhi” date fruit is highly appreciated and widely consumed at the Bisr stage (first edible stage) of maturity. However, maintaining its quality for long periods of time after harvest and throughout marketing is a substantial challenge. Therefore, the objective of this study was to investigate the effects of preharvest spray treatments of 1% chitosan (Ch) in conjunction with 3% calcium chloride (Ca) and 2 mM salicylic acid (SA) on “Barhi” fruit’s shelf life, quality, and phytochemical composition at harvest and during cold storage. All treatments significantly delayed the ripening and decay of “Barhi” dates compared to controls. Ch treatment, followed by Ch + SA and Ch + SA + Ca, showed the lowest weight loss. Ch + Ca, Ch + SA + Ca, and Ch + SA treatments showed significantly lower levels of total soluble solids (TSS) compared to the control fruit. Ch + Ca and Ch + Ca + SA treatments showed no decayed fruit after 60 days of cold storage. At the end of storage time, the Ca treatment, followed by Ch + Ca + SA, showed the greatest total phenolic (TPC), flavonoids (TFC), and tannin (TTC) contents. Ch + SA + Ca, Ch + SA, and Ch showed significantly higher antioxidant and antimicrobial activities compared to controls. Based on these findings, these treatments may be recommended to prolong the shelf life of “Barhi” date fruit.


Solar Energy ◽  
2021 ◽  
Vol 218 ◽  
pp. 425-434
Author(s):  
Ali M. Al-Amri ◽  
Mohamed A. Ismail ◽  
Yasser A. Al Hassan ◽  
Emad A. Almuhanna

Sign in / Sign up

Export Citation Format

Share Document