The effect of foliar fertilization with organic products on some nutritional value during post-harvest storage of tomatoes (lycopersicon esculentum mill)

The aim of this study was to observe the effect of foliar fertilization with organic products on the nutritional quality of fruits stored. The time between harvest and consumption of fruits and vegetables, may be up to several weeks. In this regard, the storage capacity of tomato fruits at three hybrids has been studied: Antalya, Chocolat and Tiger. The culture was founded in a greenhouse in the south-west of Romania. The fruits were stored at a temperature of 15°C ± 0.5°C and a relative atmospheric humidity of 82% for a period of 42 days. In order to assess the nutritional fruit value during storage, biochemical analyzes were carried out at 7, 21, 35 and 42 days. Experimental results have shown that the best variants of organic manure and storage time, which positive influenced the content of carotene and vitamin C were variants with humic acids + Vitis vinifera seeds extract and humic acids + extract from the seeds of Vitis vinifera + Boro(AU)

El objetivo de este estudio fue observar el efecto de la fertilización foliar con productos orgánicos sobre la calidad nutricional en los frutos almacenados. En este sentido, la capacidad de almacenamiento de los frutos de tomates ha sido sometida a tres híbridos: Antalya, Chocolat y Tiger. Los tomates han sido cultivados en un invernadero, en la parte sur-oeste de Rumanía. Los frutos se han guardado a una temperatura de 15°C ± 0.5°C y a una humedad atmosférica relativa de 82%, durante un período de 42 días. Para la evaluación nutricional de los frutos durante el periodo de almacenamiento, se realizaron análisis bioquímicos a los 7, 21, 35 y 42 días. Los resultados de los experimentos mostraron que las mejores fórmulas empleadas en la fertilización orgánica, así como el tiempo de almacenamiento, que han influido positívamente en el contenido de carotenos y vitamina C, han sido: la fórmula con ácidos húmicos + extracto de semillas de Vitis vinifera y la fórmula con ácidos húmicos + extracto de semillas de Vitis vinifera + Boro(AU)

Padronização dos extratos de Cissus sicyoides L. (Insulina vegetal) e identificação de carotenos / Standardization of extracts of Cissus sicyoides L. (Insulin plant) and identification of carotenoids

A espécie vegetal Cissus sicyoides L. é vulgarmente conhecida como insulina vegetal, cipó-pucá e anil-trepador. 0 presente trabalho pretende fornecer subsídios para a caracterização dos componentes da droga vegetal. Foi preparado o extrato acetônico das folhas, do qual foram extraídos e identificados os carotenos. Também foram determinados o perfil cromatográfico e os parâmetros físico-químicos dos extratos fluidos obtidos da planta.

Cissus sicyoides L. has commonly been known in folk medicine as vegetable insulin and used by its hypoglicemic properties. Extracts of the plant have been examined and carotenes were identified in the acetonic fraction. Analysis of the fluid extract of the plant has also been effected and the chromatopraphic profile established.