Treatment of feijoa fruit with carnauba wax to reduce water loss and preserve postharvest quality

Edible coatings are attractive strategies for blueberries postharvest preservation. In this work, carvacrol/alginate coatings were developed for application on Andean blueberries. Coating formulations were prepared based on blends of sodium alginate (2% w/v), carvacrol (0%, 0.03%, 0.06% or 0.09%), glycerol, and water and applied to the fruits by dip-coating. Then, the fruits were immersed in a calcium batch to induce a crosslink reaction. Changes in the physicochemical and microbiological characteristics of the blueberries were monitored during 21 days of storage at 4 °C. Coated blueberries were better preserved throughout the 21 days of storage because of their lower respiration rate and water loss, in comparison with the uncoated ones. Besides, the coatings enhanced the appearance and the gloss of the fruits. Control fruits showed a significant decrease in the firmness, while, in the coated fruits, this critical postharvest quality was preserved during the entire storage. Coating formulations with 0.09% of carvacrol was the most effective in preventing mesophilic aerobic bacteria and molds/yeasts growth on the fruits during the storage. Edible carvacrol/alginate coatings can be considered as a useful alternative to complement the benefits of refrigerated storage by delaying post-harvest spoilage of Andean blueberries.

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Adaptations That Reduce Water Loss

Plants in the Deserts of the Middle East - Adaptations of Desert Organisms ◽

10.1007/978-3-662-04480-3_8 ◽

2001 ◽

pp. 65-101

Author(s):

Kamal H. Batanouny

Keyword(s):

Water Loss ◽

Reduce Water Loss

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The effect of preharvest foliar sprays of calcium on quality and shelf life of two cultivars of sweet bell peppers (Capsicum annuum L.) grown in plasticulture

Canadian Journal of Plant Science ◽

10.4141/p98-092 ◽

1999 ◽

Vol 79 (3) ◽

pp. 411-416 ◽

Cited By ~ 10

Author(s):

Peter M.A. Toivonen ◽

P.A. Bowen

Keyword(s):

Shelf Life ◽

Capsicum Annuum ◽

Wall Thickness ◽

Water Loss ◽

Fruit Weight ◽

Postharvest Quality ◽

Postharvest Decay ◽

Foliar Sprays ◽

Capsicum Annuum L ◽

Bell Peppers

The effect of preharvest calcium sprays on postharvest quality of sweet bell peppers grown in plasticulture was studied. Calcium was applied as three sprays of 0.4% (wt/vol) CaCl2 in water to plots of Oriole and Bell Boy peppers in each of 2 yr. Fruit weight, water loss, firmness, decay and the composition of the pectic fractions were determined at harvest and during storage. Preharvest sprays of CaCl2 increased the weight of fruit for Oriole, improved firmness retention in storage, decreased decay, increased pericarp wall thickness and the insoluble pectic fractions of both cultivars but had no effect on water loss in storage. The results suggest that Ca improves firmness retention through enhancing the pectic composition of cell walls and pericarp wall thickness. Effects of Ca sprays on reducing decay could not be attributed to factors measured in this work. Preharvest foliar sprays of CaCl2 show promise in reducing postharvest decay and improving firmness retention in sweet bell peppers grown under plasticulture. Key words: Capsicum annuum L., calcium, pectin, shelf life, postharvest decay

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Share Expertise to Help Reduce Water Loss

Opflow ◽

10.1002/opfl.1112 ◽

2018 ◽

Vol 44 (12) ◽

pp. 16-18

Author(s):

William F. Dunnill ◽

Kevin Hickerson

Keyword(s):

Water Loss ◽

Reduce Water Loss

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Studi Kasus Penurunan Kehilangan Air Pada Sistem Distribusi Air PDAM di DMA Pondok Mutiara Payung Sekaki Dengan Metode Steptest

Jurnal Surya Teknika ◽

10.37859/jst.v7i1.2360 ◽

2020 ◽

Vol 7 (1) ◽

pp. 130-134

Author(s):

Muhammad Nawa Syarif ◽

Abrar Ridwan

Keyword(s):

Water Loss ◽

Service Area ◽

Water Leakage ◽

Pipeline Network ◽

Area 7 ◽

Area 6 ◽

Pipeline Networks ◽

High Level ◽

Reduce Water Loss

DMA (District Meter Area) Pondok Mutiara is the service area of PDAM Kota Pekanbaru which is indicated to have a high level of water leakage due to the age of the pipes and the unstable land contours in the area, the problem now is that the PDAM does not know the actual leakage value, the purpose This study is to measure the value of leakage and look for leakage points with the steptest method, and make strategies to reduce water loss in DMA Pondok Mutiara by performing maintenance assets on a regular basis to minimize leakage in the DMA pipeline network, Making plans to re-arrange pipeline networks based on existing standardization (SNI 7511: 2011), conducts routine steptest activities so that they can monitor the level of real leakage and can be responsive in dealing with leaks. Based on research that has been done, the leakage value at Pondok Mutiara DMA is 2.66 liters / second and found 4 leak points, namely 1 leakage point in area 1, 2 leakage points in area 6, and 1 leakage point in area 7.

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