scholarly journals Influence of growth stage and postharvest storage on ascorbic acid and carotenoid content and visual quality of baby spinach (Spinacia oleracea L.)

2007 ◽  
Vol 87 (11) ◽  
pp. 2170-2171 ◽  
Author(s):  
Sara ÅM Bergquist ◽  
Ulla E Gertsson ◽  
Marie E Olsson
Keyword(s):  
Ascorbic Acid ◽  
Growth Stage ◽  
Spinacia Oleracea ◽  
Visual Quality ◽  
Carotenoid Content ◽  
Postharvest Storage ◽  
Spinacia Oleracea L

scholarly journals OPTIMAL POSTHARVEST STORAGE PARAMETERS AND SHELF LIFE OF BABY SPINACH (SPINACIA OLERACEA L.)

2015 ◽  
Author(s):  
Jonas VIŠKELIS ◽  
Marina RUBINSKIENĖ ◽  
Dalia URBONAVIČIENĖ ◽  
Ramunė BOBINAITĖ, ◽  
Pranas VIŠKELIS,
Keyword(s):  
Ascorbic Acid ◽  
Shelf Life ◽  
Storage Temperature ◽  
Spinacia Oleracea ◽  
Total Content ◽  
Visual Quality ◽  
Soluble Solids ◽  
Postharvest Storage ◽  
Spinacia Oleracea L ◽  
Biochemical Quality

This work was done to evaluate the optimal postharvest storage parameters and shelf life of baby spinach. Baby spinach (50 g) was sealed in three different polypropylene (PP) and polyethylene (PE) packaging materials: 30 m (PP), 35 m (PE) & 40 m (PE), and were stored in darkness for 3 and 9 days at 0 °C, 4 °C, 8 °C & 16 °C ( 1 °C). Total content of phenolics, soluble solids, nitrates, chlorophyll content, ascorbic acid & spinach color (CIEL*a*b*) were measured by standard methods after 3 and 9 days of storage. Baby spinach stored at 0  1 °C and 4  1 °C showed the best visual quality. Storage temperature had significant influence on spinach colour, but the influence of packaging was not so strong. The content of soluble solids, ascorbic acid and nitrates decreased during storage. The highest amount of ascorbic acid was retained when baby spinach were stored in 40 m PE bags at 0  1 °C. When baby spinach was stored at higher temperatures (4 °C, 8 °C & 16 °C), the decrease in the amount of ascorbic acid ranged from 55 % to 69 %. Baby spinach stored for 9 days at 0 °C & 4 °C showed high visual and biochemical quality. Higher amounts of soluble solids and ascorbic acid were found in spinach stored in 40 m PE bags. Keywords: postharvest storage, spinach, Spinacia oleracea L.

l-ascorbic acid metabolism in spinach (Spinacia oleracea L.) during postharvest storage in light and dark

2003 ◽  
Vol 28 (1) ◽  
pp. 47-57 ◽  
Author(s):  
Merry Evelyn A Toledo ◽  
Yoshinori Ueda ◽  
Yoshihiro Imahori ◽  
Mitsuko Ayaki
Keyword(s):  
Ascorbic Acid ◽  
Acid Metabolism ◽  
Spinacia Oleracea ◽  
Postharvest Storage ◽  
Spinacia Oleracea L

Ascorbic Acid, Carotenoids, and Visual Quality of Baby Spinach as Affected by Shade Netting and Postharvest Storage

2007 ◽  
Vol 55 (21) ◽  
pp. 8444-8451 ◽  
Author(s):  
Sara Å. M. Bergquist ◽  
Ulla E. Gertsson ◽  
Lotta Y. G. Nordmark ◽  
Marie E. Olsson
Keyword(s):  
Ascorbic Acid ◽  
Visual Quality ◽  
Postharvest Storage

scholarly journals Harvest Season and Genotype Affect Head Quality and Shelf-Life of Ready-to-Use Broccoli

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 527 ◽  
Author(s):  
Giulia Conversa ◽  
Corrado Lazzizera ◽  
Anna Bonasia ◽  
Antonio Elia
Keyword(s):  
Ascorbic Acid ◽  
Dehydroascorbic Acid ◽  
Visual Quality ◽  
Dry Weight ◽  
Climatic Conditions ◽  
Total Phenol ◽  
Slight Reduction ◽  
Post Harvest ◽  
Dry Matter Concentration

Pre-harvest climatic conditions and genotype may have important effects on head quality and post-harvest performance of fresh-cut broccoli. The present work evaluates the effect of the growing cycle (summer–autumn (SA), winter (W), winter–spring (WS), and spring (S)) and genotype on qualitative (dry matter, concentration of chlorophylls, carotenoids, and color) and antioxidative (ascorbic acid, dehydroascorbic acid, total phenol concentrations, and antioxidant capacity) traits of broccoli heads and minimally processed florets. The WS raw product showed the best color indices (L* = 38.6, C* = 9.3 and h° = 123.8) as well as the highest chlorophyll (0.23 µg mg−1 fresh weight) but the lowest total phenol concentration (5.5 µg mg−1 dry weight - DW), whereas the ascorbic acid level (2.3 µg mg−1 DW) was comparable to or lower than that the other growing cycles. The WS florets confirmed their best visual quality, even showing an improved total phenol level after 14 days of cold storage. The climatic conditions experienced by broccoli plants grown in SA, W, and S periods were stressful as they resulted in a slight reduction in the visual quality of the heads, though only the SA florets showed a distinctive decay during storage. The lower post-harvest performance of SA grown broccoli was confirmed in all the tested cultivars, despite ‘Naxos’ seeming more tolerant. On the contrary, the greatest content of ascorbic acid (3.2 µg mg−1 DW) in the W heads and of phenols (11.1 µg mg−1 DW) in S heads was maintained during storage, thus preserving floret color.

scholarly journals Nutritional, textural and sensory quality of biscuits supplemented with spinach ( Spinacia oleracea L.)

2017 ◽  
Vol 7 ◽  
pp. 20-26 ◽  
Author(s):  
Narsing Rao Galla ◽  
Prabhakara Rao Pamidighantam ◽  
Balaswamy Karakala ◽  
Math Rudrayya Gurusiddaiah ◽  
Satyanarayana Akula
Keyword(s):  
Sensory Quality ◽  
Spinacia Oleracea ◽  
Spinacia Oleracea L

Quality of Irradiated Alfalfa Sprouts†

2001 ◽  
Vol 64 (10) ◽  
pp. 1574-1578 ◽  
Author(s):  
XUETONG FAN ◽  
DONALD W. THAYER
Keyword(s):  
Ascorbic Acid ◽  
Radiation Dose ◽  
Gamma Rays ◽  
Dehydroascorbic Acid ◽  
Carotenoid Content ◽  
Minimal Effect ◽  
Antioxidant Power ◽  
Medicago Sativa L ◽  
Alfalfa Sprouts

Alfalfa (Medicago sativa L.) sprouts were irradiated with gamma rays at doses of 0, 0.85, 1.71, and 2.57 kGy at 5°C, then stored at 6°C for 14 days. Antioxidant power, total ascorbic acid (TAA) (ascorbic acid plus dehydroascorbic acid), carotenoid, chlorophyll, and color were measured at 1, 7, and 14 days of storage. Antioxidant power increased linearly with radiation dose at both 1 and 7 days of storage. Irradiation had minimal effect on TAA content when compared with the decrease in TAA content during storage. Carotenoid content of sprouts irradiated at 1.71 and 2.57 kGy was higher than that of control at 7 days of storage. Irradiation did not have a consistent effect on chlorophyll content or color.

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