Postharvest Biology and Technology
Maryam Tatari
Abstract
Purpose: The aim of this study was to determine the most appropriate harvesting time and to evaluate the storage period of some new quince cultivar and the promising genotype. Research method: The fruits of ‘Isfahan’ and ‘Behta’ cultivars along with NB4 promising genotype were ...
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Purpose: The aim of this study was to determine the most appropriate harvesting time and to evaluate the storage period of some new quince cultivar and the promising genotype. Research method: The fruits of ‘Isfahan’ and ‘Behta’ cultivars along with NB4 promising genotype were harvested on 6th, 14th, and 21st October from Isfahan Agricultural Research Station, Iran. The fruits were transferred to the storage and placed at a temperature of 0±1°C and relative humidity of 90±5%. Traits were evaluated at harvesting time and also at one-month intervals for five months after storage using a factorial experiment based on a completely randomized design. Main findings: The highest percentage of total soluble solids (TSS) was obtained in the third harvesting time and after five months of storage for ‘Isfahan’. The highest firmness was obtained at the first harvesting time without storage for ‘Behta’. ‘Isfahan’ at the time of the second and third harvest showed the highest total phenol content and ‘Behta’ at the first harvest and five months after storage showed the lowest value of this trait. The most weight loss was observed in ‘Isfahan’ in the third harvest and the fifth month of storage. Experimental treatments had no effect on pectin content. The highest surface browning was observed in the third harvest and the fifth month of storage. Research limitations: No limitations were found. Originality/Value: The best harvest time for ‘Isfahan’, ‘Behta’, and NB4 was similarly 193 days after flowering. As well as storage of these fruits for four months is recommended.
Postharvest Biology and Technology
Majeed Mohammed; Zareef Aqeeb Mohammed; Aneesa Mohammed; Omaida Mohammed
Abstract
Purpose: Exotic fruits could fulfill global requirements of health-conscious consumers, providing efficient postharvest management protocols are implemented to assure safety and quality. Research Methods: Compositional changes of ripe balata fruits (Manilkara bidentata), were investigated when seal-packaged ...
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Purpose: Exotic fruits could fulfill global requirements of health-conscious consumers, providing efficient postharvest management protocols are implemented to assure safety and quality. Research Methods: Compositional changes of ripe balata fruits (Manilkara bidentata), were investigated when seal-packaged in low density polyethylene (LDPE) for 7 days at 6-7°C and 28-30°C. Mature Spanish tamarind (Vangueria edulis) fruits were stored at 20°C and 30°C and ripening changes analyzed after 3 days. Quarter-sliced mature-green (M1) and ripe-yellow (M2) West Indian lime (Citrus aurantifolia) were seal-packaged in LDPE at 4-5°C, 7-8°C and 28-30°C and evaluated over seven consecutive days. Findings: Balata seal-packaged in LDPE for 7 days at 6-7°C and at 28-30°C, accounted for lower fresh weight losses, higher total soluble solids (TSS), pH, TSS:TTA, vitamin C, better skin-gloss appearance and more acceptable flavor than control fruits over the same period. Ripe Spanish tamarind stored at 20°C and 30°C and 75-85% relative humidity had a yellowish-brown skin and pulp color, TSS (3.0-3.1%), TTA (2.24g/100g - 2.48g/100g), TSS:TTA (1:1.3), pH (3.4) and vitamin C (1.84 mg/100g). West Indian lime M2 quarter-slices at 7-8°C secured superior quality ratings due to the absence of chilling injury symptoms, cut-edge browning and fermentative aroma compared to similar treatments after 4 days at 4-5°C. At 28-30°C, M1 and M2 became unmarketable in less than two days. Research Limitations: More cultivars required. Originality/value: The unique postharvest quality characteristics of exotic fruits could be successfully managed to fulfill the basic requirements of health-conscious consumers and to exploit existing and potential niche markets.
Postharvest Biology and Technology
Maryam Tatari; Hamid Reza Bahrami; Iran Mohammadpour
Abstract
Purpose: The type of pre-storage treatments has a significant effect on the fruit quality at postharvest storage. In this study, the effects of some physical and chemical treatments on the quality and storage properties of 'Siaverz' local orange in the cold storage were investigated. Research method: ...
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Purpose: The type of pre-storage treatments has a significant effect on the fruit quality at postharvest storage. In this study, the effects of some physical and chemical treatments on the quality and storage properties of 'Siaverz' local orange in the cold storage were investigated. Research method: This research was conducted as a factorial experiment with factors of different treatments and storage time. Treatments were wax paper, Rovral-TS fungicide, wax, hot salty solution, Rovral-TS fungicide+wax paper, hot salty solution+wax paper, Rovral-TS fungicide+wax, hot salty solution+wax, and control. The fruits were stored at 8°C and examined monthly. Findings: Increasing the storage period for 90 days in control, wax paper, fungicide, fungicide+wax, and hot salty solution+wax treatments resulted in an increase in the soluble solids compared to the 30-day treatment. The increase in the storage period was accompanied by a decrease in titratable acidity. As the storage period progressed, the percentage of weight loss increased constantly. Hot salty solution+wax and wax paper treatments showed the lowest weight loss. The highest taste index was related to the control treatment and then the wax paper. The firmness of fruit tissue was reduced after 90 days of storage. Research limitations: No limitations were found. Originality/Value: The wax paper treatment and the combination treatment of hot salty solution+wax can be recommended to maintain the quality of 'Siaverz' local orange during the storage period for 90 days.
Pomology
Bipasha - Mallik; Md. Hossain; Md. Abdur Rahim
Abstract
Purpose: This study was conducted to evaluate the influences of variety and flowering time on physio-morphological and chemical characters of Dragon fruit. Research Method: Two varieties (BAU Dragon fruit 1 and BAU Dragon fruit 2) and four flowering times (May, June, July, and August) were selected for ...
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Purpose: This study was conducted to evaluate the influences of variety and flowering time on physio-morphological and chemical characters of Dragon fruit. Research Method: Two varieties (BAU Dragon fruit 1 and BAU Dragon fruit 2) and four flowering times (May, June, July, and August) were selected for this investigation. The experiment was laid out in a randomized complete block design with five replications. Findings: Significant variations were observed between two varieties of Dragon fruit. It was found that BAU Dragon fruit 2 exhibited better performances on studied parameters as compared to BAU Dragon fruit 1. It was observed that at 38 days after fruit setting (DAFS), BAU Dragon fruit 2 produced highest fruit length (10.01cm), fresh weight (307.94 g/fruit), dry weight (24.85 g/fruit), pulp weight (168.98 g/fruit), peel weight (91.32 g/fruit) and total soluble solids (TSS) (25.16% Brix) as compared to another variety. The combine effects of variety and flowering time showed that August flowering of BAU Dragon fruit 2 produced maximum fruit length (10.74 cm) and peel weight (115.65 g/fruit) while May flowering of BAU Dragon fruit 2 produced maximum fresh weight (456.50 g/fruit), pulp weight (302.12 g/fruit), moisture content (94.63%) and TSS (27.17 %Brix) as compared to other flowering time. In terms of time required to fruit maturity, August flowering BAU dragon fruit 2 matured earlier (30.6 days) than June flowering (35.04 days). Research limitations: Evaluation of more varieties of dragon fruit was a research limitation. Originality/value: These findings reveal that flowering time irrespective of variety has direct effects on fruit growth and development of Dragon fruit.
