Effect of 1-methylcyclopropene (1-MCP) on storage life and quality of pear fruits

Abstract

Pear (Pyrus pyrifolia (Burm) Nakai) fruits of cultivar 'Patharnakh' were harvested at optimum maturity and treated with 500, 750 and 1000 ppb concentration of 1-MCP gaseous vapours for 4 h in a closed chamber maintained at 20°C. After treatments the fruits were packed in corrugated fibre board cartons and stored at 0-1°C and 90-95% RH. Fruits treated with 1000 ppb 1-MCP recorded minimum weight loss, maintained acceptable firmness and quality attributes till 75 days of storage. The stored fruits also retained post-storage shelf life for 3 days at ambient conditions (30-35°C and 60-65% RH) and 6 days at supermarket conditions (20°C and 85-90% RH).

Improvement of Postharvest Keeping Quality of Bell Pepper (Capsicum annum L.) Fruits Treated with Different Chemicals following Cold Storage

“…The decrease in acidity of the samples in the present study was due to the conversion of acids into sugars however the slower rate of decline of acidity in fruits treated with calcium, salicylic acid and H 2 O 2 was due to reduced sensitivity of the fruits to ethylene and reduced fruit respiration. In the present study calcium chloride @ 1.5 per cent retained highest mean titratable acidity and similar results have been reported previously in papaya (Marpudi et al, 2011), peach (Tareen et al, 2012, tomato (Anthon et al, 2011), pear (Mahajan et al, 2010), apple (Schaik et al, 1992), etc.…”

“…1). The retention of sensory quality of bell pepper fruits with 1-MCP treatments is in accordance with earlier observations for pear (Mahajan et al, 2010), guava (Bassetto et al, 2005), apricots (Fan et al, 2002). Further, the fruits treated with 1000 ppb (8.19), MCP significantly retained highest overall acceptability (8.19) compared to other treatments after 28 days of storage at 10 2 .…”

Effect of skin coatings on prolonging shelf life of kagzi lime fruits (Citrus aurantifolia Swingle)

“…Whereas, sesamum oil coating showed minimum (−39.0%) marketable fruits over control, it gave negative response. Similar observations were made by Mahajan et al (2010) in pear fruits.…”

“…Enhancing the shelf life of fruits is the only remedy to fulfill the demand of market during off-season also. Like any other fruits kagzi lime is perishable in nature, around 25-40% harvested fruits are lost before consumption due to faulty post harvest handling and microbial attack after harvest (Mahajan and Singh 2008). After the fruit have been harvested at optimum maturity the important post harvest need is the retention of quality for longer period as possible so that, it can be marketed for extended period.…”

Extended Cold Storage of Winter Pears by Modified Atmosphere Packaging

“…In contrast, unpackaged fruit reached 6% weight loss after 58 days of cold storage for 'Rocha' and after 72 days for 'Packham's Triumph' pears ( Figures 1B and 1D). According to MAHAJAN et al (2010), losses of 6% fresh weight compromises appearance due to dehydration of the region near the peduncle. Damage can vary among different cultivars due to the intrinsic characteristics of fruits, especially skin thickness.…”