-Introduction. Fruit quality characteristics are governed by preharvest factors, mainly climate, nutrition and plant bio-regulators, of which the latter two can easily be manipulated in the grower's interest. Likewise, the postharvest treatments with the best performance can maintain quality during storage and distribution. Therefore, it is important to embrace a holistic approach to combine the pre-and postharvest practices in view of attaining maximum quality and satisfaction at the consumer level. Materials and methods. Various combinations of mineral nutrients (calcium and boron) and bio-regulators (salicylic acid and gibberellic acid) were applied at the pre-and postharvest stages of apple fruits to study their influence on postharvest behavior of these fruits during 60 days of storage under ambient conditions. Results and discussions. Among the different treatments tried, fruits treated with either salicylic acid or calcium showed significant improvement with regards to improved physico-chemical characteristics and reduced fruit infection percentage. Integration of pre-and postharvest application of chemicals was verified as the most effective choice for the improvement of shelf life of apple fruits amongst the treatment combinations applied either at the pre-or postharvest stage. The application of salicylic acid in combination with calcium or boron renders an alternative to the use of fungicides to control decay during apple fruit storage. Résumé -Introduction. Les caractéristiques de qualité des fruits sont régies par certains facteurs intervenant avant leur récolte, principalement le climat, la nutrition et les bio-régulateurs des plantes ; ces deux derniers éléments peuvent facilement être manipulés pour aider le producteur. De même, certaines combinaisons de traitements après récolte sont aptes à maintenir la qualité des fruits pendant le stockage et la distribution. Il en résulte qu'il serait important d'adopter une approche globale permettant de combiner les pratiques avant ou après récolte en vue d'obtenir une qualité maximale et la satisfaction du consommateur. Matériel et méthodes. Diverses combinaisons d'éléments minéraux (calcium et bore) et de bio-régulateurs (acide salicylique et acide gibbérellique) ont été appliquées à des lots de pommes avant et après récolte pour étudier leur influence sur le comportement après récolte de ces fruits au cours d'un stockage de 60 jours dans des conditions ambiantes. Résultats et discussion. Parmi les diffé-rents traitements essayés, les fruits traités soit avec de l'acide salicylique soit avec du calcium ont montré une amélioration significative de leurs caractéristiques physico-chimiques et leur taux d'infection a été réduit. Parmi tous les traitements testés, les combinaisons de produits chimiques appliquées avant et après récolte se sont avérées être les plus appropriées à une amélioration de la durée de conservation des pommes. L'application de l'acide salicylique en combinaison avec du calcium ou du bore permettrait de pallier l'utilisation d...
The main objective of the present investigation was to develop an improvised method for the preparation of Rhododendron squash, which otherwise had a narrow consumer's acceptability, despite being rich in antioxidants due to faulty preparation procedure and to compare the superiority of the new method over existing preparation method by examining various antioxidants and total antioxidant capacity. For the preparation of squashes in the present investigation, Rhododendron petals were heated with water at 80 °C for 20 min and left for 3-hour (or 180 min) followed by filtration and addition of sugar with or without ginger juice. Leaving Rhododendron petals with water for 3-hour at room temperature following heating facilitated maximum recovery of anthocyanin in water. Rhododendron squashes, prepared through improvised method, were compared with a Rhododendron squash collected from the market (control) for their physico-chemical characteristics, antioxidants and sensory quality attributes. The improvised Rhododendron squashes registered higher values for most of the parameters than the control.
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