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-Introduction. Attempts to exploit natural preservatives to control postharvest diseases as an alternative technology to synthetic fungicides in citrus fruit have been drawing much attention. Materials and methods. The combined effects of carboxymethyl cellulose (CMC) coating and/or clove oil on the qualitative properties of cold-stored 'Xinyu' mandarin oranges stored at 5• C for 120 days were investigated. Results and discussion. The results showed that the addition of clove oil as an antifungal component to the CMC coating had a good effect on the inhibitory growth of fungal decay, and the coating treatments significantly decreased the decay rate and weight loss, as well as the maleic dialdehyde (MDA) concentration compared with control samples. The clove oil-carboxymethyl cellulose (CO-CMC) coating significantly maintained commercial quality and inhibited respiration. Meanwhile, the results showed that the activities of superoxide dismutase (SOD), catalase (CAT), polyphenol oxidase (PPO) and phenylalanine ammonia lyase (PAL) in fruit treated with CO-CMC coating were higher than in those treated with CMC coating and control samples. Conclusion. The CO-CMC coating has good potential for application as an alternative to synthetic fungicides for improving postharvest quality and prolonging the shelf life of 'Xinyu' mandarin oranges during cold storage.Keywords: China / mandarin / Citrus reticulata / CMC / postharvest quality / integrated disease management / clove oil / enzyme activity / shelf life Résumé -Effet de l'enrobage au carboxyméthyl de cellulose enrichi avec de l'huile de clou de girofle sur la qualité des mandarines 'Xinyu' après récolte. Introduction. Les tentatives visant à exploiter les conservateurs naturels ont beaucoup attiré l'attention dans la perspective de contrôler les maladies sur agrumes après récolte comme technologie alternative aux fongicides de synthèse. Matériel et méthodes. Les effets combinés du carboxyméthyl de cellulose (CMC) en enrobage avec ou sans huile de clou de girofle ont été étudiés sur les propriétés qualitatives des mandarines 'Xinyu' stockées à 5• C pendant 120 jours. Résultats et discussion. L'ajout d'huile de clou de girofle comme composant antifongique dans l'enrobage au CMC a eu un effet positif sur l'inhibition de croissance de la pourriture fongique, et les traitements d'enrobage ont diminué de manière significative le taux de décroissance, la perte de poids, ainsi que la teneur en dialdéhyde maléique (MDA) par rapport aux échantillons témoins. La combinaison huile de clou de girofle-CMC a sensiblement maintenu la qualité commerciale et inhibé la respiration. Dans le même temps, les activités enzymatiques de la superoxyde dismutase (SOD), de la catalase (CAT), de la polyphénol oxydase (PPO) et de la phénylalanine ammonialyase (PAL) étaient plus élevées au sein des fruits enrobés (huile de clou de girofle-CMC) que dans les échantillons enrobés au CMC seul ou dans ceux du témoin. Conclusion. L'enrobage huile de clou de girofle-CMC présente un fort potentiel...

Food-derived bioactive peptides play critical roles in regulating most biological processes and have considerable biological, medical and industrial importance. However, a large number of active peptides data, including sequence, function, source, commercial product information, references and other information are poorly integrated. BioPepDB is a searchable database of food-derived bioactive peptides and their related articles, including more than four thousand bioactive peptide entries. Moreover, BioPepDB provides modules of prediction and hydrolysis-simulation for discovering novel peptides. It can serve as a reference database to investigate the function of different bioactive peptides. BioPepDB is available at http://bis.zju.edu.cn/biopepdbr/ . The web page utilises Apache, PHP5 and MySQL to provide the user interface for accessing the database and predict novel peptides. The database itself is operated on a specialised server.

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