Punnet

Abstract: Aims: To study the effect different packaging materials on shelf-life and quality of blended fruit leather. Place of Study: The present investigation was carried out at the Department of Post-Harvest Technology and Agri. Engineering, Indian Institute of Horticultural Research (IIHR), Bengaluru. Methodology: Guava variety ‘Allahabad Safeda’ and papaya variety ‘Taiwan Red Lady’ fruit leathers were prepared by blending their pulp at different ratios of 100:0, 80:20, 60:40, 50:50, 40:60, 20:80 and 0:100 respectively. Citric acid at 0.3% and KMS (Potassium meta-bisulphite) at 600 ppm was added to the blended pulp and TSS was adjusted to 20°B. The pulp according to treatments were then dried in a cabinet drier at 55 to 60°C till the desired moisture content (approx. 15%) was achieved. Results: Blended guava-papaya (40:60) leather was found best among the treatments in terms of better nutritional and sensory characteristics at initial and also during the subsequent storage periods. The prepared fruit leathers that were packed in biaxially oriented polypropylene showed better results with better nutrient retention (ascorbic acid 90.1 mg/100 g and carotenoids 947.2 μg/100 g) and higher organoleptic score (70.03 overall acceptability out of 100) to those packed in punnets (ascorbic acid 73.2 mg/100 g, and carotenoids 893.0 μg/100 g) during the storage period Original Research Article Singh et al.; EJNFS, 12(8): 22-32, 2020; Article no.EJNFS.59119 23 of 4 months. The microbial examination also revealed that all the samples were found to be safe from the consumption point of view till the end of four months of storage. Conclusion: The blended fruit leather can be a good source of various heath promoting phytochemical nutrients with a unique taste and acceptability having a storage stability for safe consumption till 4 months.

Abstract: The present invention relates to food delivery packaging ( 10 ) for delivery perishable fruit and vegetables through a postal delivery system. An impermeable punnet ( 12 ) is loaded with harvested fruit and/or vegetables that are prepared for eating and which, in the course of transit, are likely to produce moisture or exudates. A protective film lid ( 24 ) is sealed over the punnet ( 12 ), which film lid ( 24 ) includes perforations and typically micro-perforations ( 30 ) located in at least one region ( 28 ) of the film ( 24 ). A secondary sleeve or cover ( 30 ) includes an absorbent pad ( 40 ). When the sleeve ( 40 ) or cover, which is separate to the film lid, is located over the punnet, the absorbent pad ( 40 ) comes into close mating contact and alignment with the region ( 28 ) of the film ( 24 ) containing the perforations ( 30 ). The absorbent pad ( 40 ) therefore acts to absorb moisture and exudes that escape from the punnet during postal transit, while also ensuring breathability for the fruit and vegetables sealed within the punnet ( 10, 12 ).

Abstract: The issue of temperature control or maintenance for perishable fresh produce is an important area and particularly so for highly perishable products such as strawberries. Much research and investigation has been on cool chain stops at the retail outlet and there are very limited studies of the “last mile” between the retail outlet and the consumer domestic refrigerator. This study looks at the typical temperature of ‘Elsanta’ strawberries at the time of purchase in representative UK supermarkets and then the temperature rise of both the pulp and the air within the punnet under different temperature scenarios. Results from this study showed that the range of mean pulp temperature at purchase from six supermarkets was 6.3 to 13.0°C during a 10-week retail display period. Three temperature scenarios were simulated from 5 to 10°C, 5 to 15°C, and 10 to 30°C. A single punnet of ‘Elsanta’ strawberries was put in a supermarket plastic bag (High Density Polyethylene) or within the light weight insulated bags (LIB-White or LIB-Reflective). The physical and mechanical characteristics of three materials were measured for thickness, tensile strength, percent elongation, and water vapour transmission rate. The insulated bags kept pre-chilled strawberries and delayed the increase of air and pulp temperature by about 20 and 10% respectively over 3 h, when compared with control (plastic bag). This study showed that the insulated bag has a potential to assist cool temperature management and reduce strawberry deterioration from supermarket to household.

Abstract: Support for punnet (5) containing pet food, the support having a bowlshape and a cavity in the middle of it where the corresponding punnet can fit, characterised in that the support contains an upperbowl shaped part (4), a supporting system for said fitting punnet, a lower part ending by a bottom comprising a hole which minimum size allows the nested punnet to be easily pushed by the underside of said support.