Reduction of Losses in Fresh Market Fruits and Vegetables

Harvey, J. M.

doi:10.1146/annurev.py.16.090178.001541

Cited by 100 publications

(30 citation statements)

References 13 publications

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“…Postharvest losses have been estimated to range from 10 to 30% per year despite the use of modern storage facilities and techniques (Harvey, 1978). Fruit crops are attacked by a wide range of microorganisms in their postharvest phase (Snowdon, 1990;Ogawa & English, 1991).…”

Section: Introductionmentioning

confidence: 99%

Identification of Penicillium expansum causing postharvest blue mold decay of apple fruit

et al. 2014

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SummaryPenicillium expansum (Link) Thom. is one of the most important postharvest pathogens of apple fruit worldwide. It causes blue mold, a decay that can lead to significant economic losses during storage, which can also impact fruit destined for processing due to the production of carcinogenic mycotoxin patulin. Apple fruit cvs. Idared, Golden Delicious and Braeburn with blue mold symptoms were collected from five storage facilities in Serbia and nine fungal isolates were obtained. Pathogenicity of the isolates was tested and proven by artificial inoculation of healthy apples cv. Idared. In order to identify the causal agents of decay, morphological and molecular methods were used. Colony morphology and microscopic features were observed on differential media, and isolates were tested for the production of cyclopiazonic acid. Molecular analysis included PCR amplification with species specific primers for P. expansum based on polygalacturonase gene (Pepg1), universal primers for internal transcribed spacer rDNA region and primers based on β-tubulin gene. All isolates formed compact blue green colonies with characteristic earthy odor. Conidiophores were terverticillate with smooth septate stipes and conidia were smooth, globose to subglobose, born in colums. The average size of conidia was 3.38 ± 0.49 (SD) x 3 ± 0.36 (SD) μm. Using species specific primers PEF/PER the texpected amplicons of ~404 bp were obtained in all nine tested isolates and PCR conducted with the Bt-LEVUp4/Bt-LEV-Lo1 and universal ITS1/ITS4 primer pairs generated amplicons of the expected sizes of ~800 bp and ~600 bp, respectively. MegaBlast analyses of the 2X consensus of nucleotide sequences of the isolate JP1 partial β-tubulin gene and ITS region showed 99-100% and 100% similarity with several P. expansum sequences of corresponding regions of this species deposited in GenBank. Based on morphological and molecular features, the isolates obtained from decayed apple fruit collected in several storage facilities in Serbia were identified as P. expansum.

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Section: Introductionmentioning

confidence: 99%

Identification of Penicillium expansum causing postharvest blue mold decay of apple fruit

et al. 2014

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“…During storage of vegetables and fruits, control of micro-organisms is important to prevent decay (Harvey 1978). Vegetables are usually treated with chlorinated water after washing to reduce the microbial load prior to packaging (Bolin et al 1977).…”

Section: Introductionmentioning

confidence: 99%

Effects of preharvest treatment, disinfections, packaging and storage environment on quality of tomato

2011

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The major objective of this study was to explore the significance of an integrated agro technology in maintenance of postharvest quality of tomato. Preharvest ComCat® treated tomatoes and untreated controls were evaluated for changes in physiological, chemical, and microbiological quality during storage at 13°C and room temperature (16.9-25.2°C) and a relative humidity of 34-76%. Effects of disinfection coupled with packaging were evaluated. Physiological weight loss, total soluble solids, peroxidase activity and marketability were maintained better in anolyte disinfected tomatoes. At harvest, ComCat® treated tomatoes had lower pH, glucose and microbial populations, and higher total soluble solids, total titratable acids, sucrose, peroxidase activity than controls. The total soluble solids were better retained in ComCat® treated tomatoes than in control, while the sucrose and glucose contents remained lower after ripening. Peroxidase activities were lower in ripening ComCat® treated tomatoes, and difference in polygalactronase activity was only visible after 30 days. The microbial populations were lower in ComCat® treated fruit. Marketability of ComCat® treated tomatoes was better than that of the control. Integrated technology covering preharvest ComCat® application, disinfection with anolyte water and packaging combined with cold storage at 13°C maintained the superior quality of tomato.

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“…das Amé-ricas, 29.501, Guaratiba, CEP 23020-470 Rio de Janeiro, RJ. E-mail: nbotrel@ctaa.embrapa.br qualidade inicial do produto; a temperatura na qual o produto foi manuseado, armazenado, transportado e distribuído; a umidade relativa do ambiente pós-colheita; o uso de atmosfera controlada ou modificada durante o armazenamento e o transporte; tratamentos químicos utilizados para o controle de desordens fisiológicas; tratamento a quente para o controle de perdas e embalagens e sistemas de manuseio (Harvey, 1978).…”

Section: Introductionunclassified

Efeito do cloreto de cálcio e do tratamento hidrotérmico na atividade enzimática e no teor de fenólicos do abacaxi

Gonçalves

Carvalho

Gonçalves

2000

Pesq. agropec. bras.

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RESUMO -O abacaxi (Ananas comosus Mill.) está sujeito a danos causados pelo frio durante o armazenamento refrigerado. A aplicação, pós-colheita, de Ca pode contribuir para reduzir vários tipos de desordens fisiológicas. Neste trabalho, verificou-se a influência da aplicação, pós-colheita, de CaCl 2 a 2%, associada ao tratamento hidrotérmico (38 o C e 40 o C) por 10 e 20 minutos de imersão, na composição química (fenólicos e enzimas), e na suscetibilidade ao escurecimento interno do abacaxi (Ananas comosus Mill.) cultivar Smooth Cayenne. Os frutos foram armazenados a 9o C e umidade relativa de 90% por um período de 15 dias. As avaliações foram efetuadas sete dias após a retirada dos frutos das condições de refrigeração. O tratamento dos frutos com CaCl 2 reduziu o índice de escurecimento interno, conferindo menor atividade das enzimas polifenoloxidase, peroxidase e fenilalanina amônio liase e reduzindo o teor de compostos fenólicos na polpa quando associado ao tratamento hidrotérmico, independentemente do tempo de imersão.Termos para indexação: Ananas comosus, pós-colheita, armazenamento, refrigeração, manutenção da qualidade, desordens fisiológicas. EFFECT OF CALCIUM CHLORIDE AND HYDROTHERMICAL TREATMENT ON ENZYMATIC ACTIVITY AND PHENOL CONTENT OF PINEAPPLEABSTRACT -Pineapple (Ananas comosus Mill.) is exposed to injuries caused by low temperature during the refrigerated storage. The post-harvest application of Ca may contribute to reduce a number of physiological disorders. In this work, the influence of the postharvest application of 2% CaCl 2 associated with hydrothermical treatment (38 o C and 40 o C) for 10 and 20 minutes, on the chemical composition (enzymes, phenols), and susceptibility to internal browning of pineapple 'Smooth Cayenne' fruits was studied. The fruits were stored at 9 o C and 90% relative humidity for 15 days. The evaluations were performed seven days after removal of the fruits from the refrigerated conditions. The immersion of the fruits into a 2% CaCl 2 solution reduced the index of internal browning and diminished the activities of the enzymes polyphenoloxidase, peroxidase and phenilalanine ammonium lyase, as well as the content of phenolic compounds when associated with the hydrothermic treatment regardless to the immersion period.Index terms: Ananas comosus, postharvest, storage, refrigeration, keeping quality, physiological disorders. INTRODUÇÃOA crescente demanda das frutas tropicais no mercado internacional coloca o Brasil como um dos mais promissores países a dominar este mercado. Entre as principais frutas tropicais exploradas no Brasil, destaca-se o abacaxi, com suas excepcionais caracterís-ticas organolépticas e nutricionais.Entre os diversos fatores que contribuem para a manutenção da qualidade, dos frutos, destacam-se: a 1 Aceito para publicação em 27 de julho de 1999.

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Reduction of Losses in Fresh Market Fruits and Vegetables

Cited by 100 publications

References 13 publications

Identification of Penicillium expansum causing postharvest blue mold decay of apple fruit

Identification of Penicillium expansum causing postharvest blue mold decay of apple fruit

Effects of preharvest treatment, disinfections, packaging and storage environment on quality of tomato

Efeito do cloreto de cálcio e do tratamento hidrotérmico na atividade enzimática e no teor de fenólicos do abacaxi

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