Comparative Nutrient and Antioxidant Profile of High Lycopene Variety with hp Genes and Ordinary Variety of Tomato under Organic Conditions

Abstract

Organic tomato cultivation is growing all over the world due to its healthy functional properties and environmental concerns. Recently, some new varieties with increased functional properties, particularly high lycopene, have been developed. However, few were assessed under organic farming systems. The objective of this study was to evaluate physico-chemical properties and the main bioactive compound contents, as well as lipophilic, hydrophilic and total radical scavenging activities of a recently developed high lycopene tomato variety homozygous for hp-2dg genes (HLT-F71) grown under organic conditions for two non-consecutive years (2019 and 2021) compared to the ordinary control ‘Nemador’ variety. The lycopene, β-carotene, total phenol, flavonoid, vitamin C, radical scavenging activity and tocopherols were analyzed by using spectrophotometric and HPLC methods, respectively. The high lycopene content variety presented suitable marketable yield, average fruit weight, pH, titratable acidity, firmness and higher °Brix, pulp color than the control. Additionally, it has significantly higher lycopene, β-carotene, total phenol, flavonoid, vitamin C and particularly considerable α-tocopherol contents, as well as radical scavenging activity. The high lycopene tomato variety with hp genes proved to be an effective sustainable variety for enhancing tomato fruit yield and functional properties even under organic grown conditions.

Agronomic Performance and Nutraceutical Quality of a Tomato Germplasm Line Selected under Organic Production System

“…The data were similar to those formerly found in organic tomatoes grown in Tunisia, with 123.8, 81.5, and 205.3 µM Trolox/100 g fw for LRSA, HRSA and TRSA, respectively [37]. The results of the current research were higher than those recently reported for the activities of LRSA, HRSA, and TRSA in the organically grown Nemador variety, with 107.7, 74.8, and 182.5 µM Trolox/100 g fw, respectively [47]. This is probably due to genotypic differences.…”

“…Comparable values for α-tocopherol, between 14.3 and 26.8 µg/g fw, in tomatoes grown under organic management were found by Fracchiolla et al [39]. The results were in the range of those found recently by Romdhane et al [47], who noted α-tocopherol values that varied from 17.0 to 27.7 mg/kg fw in organically grown Nemador and high lycopene tomato varieties, respectively. The γ-tocopherol content was only detected in the new tomato germplasm line OSTGL, with 0.28 mg/kg fw.…”

Organic inputs with reduced chemical fertilizers improve yield, antioxidant components, and defense mechanisms in Tomato (var. Pusa Sheetal)

“…The study found that using vermicompost significantly increased tomato fruit quality, and enhanced soil health, indicating its positive impact on tomato production [44]. The high lycopene content is also correlated with suitable yield, fruit weight, titratable acidity, °Brix, pulp color, and significantly higher lycopene, β-carotene, and vitamin C contents [45]. Vermicompost, derived from cow dung and farm waste, supports essential nutrients, enhancing plant growth, photosynthesis, and chlorophyll contents [46].…”

Assessment of Different Tomato Varieties and Chemotherapeutic Compounds for Controlling Root Rot Disease Caused by Rhizoctonia Solani

“…The tomato plays a key part in a variety of food products, from juice to soups, from canned treats to powerful sauces (Romdhane et al, 2023;Wu and Nelson, 2023). This is because the tomato's organic germplasm is enhanced by the presence of phenols, flavonoids, vitamin C, tocopherols, and antioxidants.…”