May 29, 2024
Leila Karami

Leila Karami

Academic Rank: Assistant professor
Address:
Degree: Ph.D in plant biology
Phone: 09173767604
Faculty: Faculty of Agricultural Engineering

Research

Title
The effect of Seaweed Extract, Psyllium seed gum and temperature on quality and shelf-life of tomato ( Lycopersicum esculentum L.
Type Thesis
Keywords
عصاره جلبك دريايي، گوجه فرنگي، موسيالژ اسفرزه، دما و عمر انباري
Researchers Rahim Nikkhah (Primary advisor) , Leila Karami (Primary advisor)

Abstract

Background: Tomato is a valuable product that after harvesting activities and high metabolic reactions, it causes decay and spoilage of the product and loses its quality and marketability. Aim: This study was conducted to investigate the effect of seaweed, asparagus mucilage and temperature treatments on post-harvest quality of tomato fruits during storage in the horticultural laboratory of the Faculty of Agriculture and Natural Resources, Persian Gulf University. Methodology: The experiment was performed as a factorial experiment in a completely randomized design with three replications. Ripe fruits were treated with concentrations of 1 and 3 g / l of Ascophilum nodosum algae extract, 200 and 400 mg / l of asparagus mucilage and distilled water as a control, and were placed at room and refrigerator temperatures. Shelf life for fruits was considered to be 20 days. In each 5-day period, fruit weight loss percentage, fruit pH, TSS, TA, percentage of infected fruits, percentage of shrinkage, vitamins C, taste index and lycopene were examined. Conclusions: he results showed that the independent effects of temperature, coating material (seaweed extract and asparagus mucilage) and storage time for all traits showed a significant effect. The three effects of temperature, coating material and storage time were significant except for pH, which was not statistically significant, for tissue strength at 5% and for other traits at 1%. In general, the results showed that the applied treatments and storage conditions had an important effect on increasing the quantitative and qualitative characteristics as well as reducing the percentage of contamination of post-harvest tomato fruits. This study also confirmed that room temperature is an optimal temperature for storage and extract of Ascophilum nodosum and Asfarzeh mucilage are suitable post-harvest treatments for Sansid tomatoes and can be used as an efficient method for storage and transportation. Tomatoes are suggested.