Postharvest Technologies for Shelf Life Enhancement of Temperate Fruits

Benichou, Mohamed; Ayour, Jamal; Sagar, Maha; Alahyane, Abderrahim; Elateri, I; Ait-Oubahou, A.

doi:10.1007/978-3-319-76843-4_4

Cited by 14 publications

(5 citation statements)

References 28 publications

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“…Freshly harvested blackberries have been reported to last up to 14 days at 0 • C with relative humidity above 90%, although the average shelf life for blackberry fruits is 2-5 days (Perkins-Veazie, 2016). On the other hand, blackberries are non-climacteric fruits, so, harvesting of blackberries close to a fully ripened stage is recommended (Benichou et al, 2018). Numerous studies report improvement in berry's shelf life (Huynh et al, 2019) through diverse treatments such as coatings (Baldwin, 2016), modified packaging (Junqueira-Gonçalves et al, 2016), controlled atmosphere storage (Yahia et al, 2019), sanitation (Horvitz, 2017), and irradiation (Butot et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Delayed Senescence and Marketability Index Preservation of Blackberry Fruit by Preharvest Application of Chitosan and Salicylic Acid

et al. 2022

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Blackberry fruits are appreciated as a source of nutrients and compounds related to benefit human health. However, they are highly perishable and very susceptible to decay factors. Current methods to improve and maintain blackberry quality are limited in use because of the fruit's fragile physical properties. Regarding these properties, it has been reported that the activities of certain enzymes are linked to senescence and fruit softening processes. This study was aimed to assess the effect of salicylic acid (SA) and chitosan (COS) as preharvest treatments on the physiology related to improving fruit conservation and preserving the marketability index of blackberry fruit. The preharvest treatments were foliar sprayed on blackberry plants at different concentrations. The activities of enzymes superoxide dismutase (SOD), catalase (CAT), phenylalanine ammonia-lyase (PAL), and polygalacturonase (PG) were measured. Total soluble solids (TSS), titratable acidity (TA), TSS/TA ratio, and marketability index (MI) were analyzed after 144 h of storage. The application of 3 mM of SA and 0.25% of COS treatments preserved the MI of blackberries by reducing leakage, red drupelet reversion (RDR), and mycelium presence in the fruit. SA application increased SOD, CAT, and PAL activities. Our results also showed that SA and COS preharvest treatments modified the activity of the cell wall degrading enzyme PG, which might play a role in improving the shelf life and resistance to decay factors of blackberry fruit without any significant effects on physicochemical properties like TSS, TA, and the TSS/TA ratio.

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Section: Introductionmentioning

confidence: 99%

Delayed Senescence and Marketability Index Preservation of Blackberry Fruit by Preharvest Application of Chitosan and Salicylic Acid

et al. 2022

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“…In this line, Brasiello et al 6 reported that fruit drying is a preservation technique to extend fruit consumption by reducing the moisture and the microbial load. The increased demand for fruits in the international markets implies continuous research and improvement of technologies to maintain quality and extend the shelf life of product 7 . There are different pre-treatments procedures used prior to apricot drying, including immersion in chemical solutions 8 , blanching 9 , and physical pretreatments 10 .…”

Section: Introductionmentioning

confidence: 99%

Sodium metabisulfite dipping, hot water blanching and sulfur fumigation impact on the nutritional quality of dried apricot (Prunus armeniaca L.) cultivars

Abidi¹,

Akrimi²,

Neily³

et al. 2023

Nor. Afr. J. Food Nutr. Res.

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Background: Fruit postharvest loss has become a major concern for apricot growers. Under this situation, fruit valorization will continue to challenge agricultural sustainability. Aims: The study aimed to evaluate the nutritional and sensorial quality of fresh and dried apricot fruits cultivars (Amr Leuch, Bayoudhi, Canino, Khad Hlima, Khit el Oued, and Sayeb) harvested from private orchards in Hajeb Laayoun- Kairouan Tunisia, during two growing seasons (2018/2019). Material and Methods: The pre-treatments consisted of sulfur fumigation, sodium metabisulfite dipping, and hot water blanching whereas the distilled water was used as a control. Fruit pomological traits, physic-chemical and biochemical parameters were evaluated in fresh and dried apricot fruits. Sensorial analysis (color, texture, taste, aroma and consumer satisfaction) was performed in fresh and dried apricot fruits. Results: Results showed that the drying process decreased the antioxidant compounds content in the apricot fruits. Conclusions: The sensorial analysis measured in global satisfaction showed that the cultivars Bayoudhi and Khit el Oued possess higher consumer acceptability as fresh fruits whereas the cultivars Canino and Khad Hlima were found to be promising varieties for apricot drying. The sulfur-fumigation and sodium metabisulfite dipping were efficient pre-treatments as it improved the color of the dried apricot fruits. Keywords: Apricot, drying, color, antioxidants, sensorial quality.

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“…Drying is an essential physical unit operation used in chemical, pharmaceutical, and agricultural sectors and its importance has become apparent in all countries (Górnicki et al, 2020;Wahidi and Rohani, 1996). Agricultural product drying has a vital role in the preservation and extension of the product's shelf-life after harvesting by reducing the moisture content to a safe level usually between 10 -20% ( Benichou et al, 2018;Eltawil et al, 2018;Hatamipour et al, 2007). A solar dryer is a device used to dry agricultural products (Belessiotis and Delyannis, 2011; Sözen et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Performance of Solar Dryer with Finned Plate Solar Chimney

Habtay¹,

Buzás²,

Farkas³

2022

JTI

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ABSTRACT The objective of this study is to investigate the influence of geometrical parameters of a solar chimney, i.e., on the flow channel air gap, on the performance of a solar dryer in terms of thermal efficiency, drying efficiency, and dried product weight loss. Experimental outcomes showed the temperature inside the drying chamber increases as solar intensity increases, while relative humidity decreases. In the study sliced potatoes were selected to be dried. The average collector and chimney efficiency were found to be higher when a 10 cm air gap height was used instead of a 5 cm air gap height. After 8.5 h of drying, the moisture content of the 5 cm and 10 cm chimney air gap height differed by around 28%. Moreover, the temperature of the chimney absorber was found to be between 35.5-81 °C, with an average of 56.6 °C, which is roughly 13% lower than the collector absorber due to the solar chimney’s orientation. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui pengaruh parameter geometri cerobong surya, khususnya ketinggian celah udara saluran aliran, terhadap kinerja pengering surya dalam hal ini efisiensi termal, efisiensi pengeringan, dan kehilangan berat produk kering. Hasil pengujian memperlihatkan bahwa temperatur di dalam ruang pengering meningkat seiring dengan meningkatnya intensitas matahari, sementara kelembaban relatif menurun. Dalam penelitian ini, irisan kentang dipilih sebagai objek pengering. Efisiensi kolektor dan cerobong rata-rata lebih tinggi pada kondisi celah udara 10 cm dibandingkan celah udara 5 cm. Setelah 8,5 jam proses pengeringan, kadar air pada kondisi celah udara cerobong 5 cm dan 10 cm berbeda sekitar 28%. Temperatur penyerap cerobong berada diantara 35,5-81 °C, dengan rata-rata 56,6 °C, yang berarti temperaturnya lebih rendah 13% dibandingkan dengan temperatur penyerap kolektor, sebagai akibat adanya orientasi cerobong surya.

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Postharvest Technologies for Shelf Life Enhancement of Temperate Fruits

Cited by 14 publications

References 28 publications

Delayed Senescence and Marketability Index Preservation of Blackberry Fruit by Preharvest Application of Chitosan and Salicylic Acid

Delayed Senescence and Marketability Index Preservation of Blackberry Fruit by Preharvest Application of Chitosan and Salicylic Acid

Sodium metabisulfite dipping, hot water blanching and sulfur fumigation impact on the nutritional quality of dried apricot (Prunus armeniaca L.) cultivars

Comparative Study on the Performance of Solar Dryer with Finned Plate Solar Chimney

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