Tomato value chain analysis in Tunisia : business opportunities : Business opportunities

Soethoudt, Han; Blom-Zandstra, Greet; Axmann, Heike

doi:10.18174/452977

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Tunisia plays a significant role in tomato production, cultivating approximately 24,540 hectares dedicated to tomatoes and yielding an annual output of 1,416,000 tons (Romdhane et al., 2023). The industrial tomato sector plays a crucial role in the food industry, contributing to the growth of the agricultural sector and employment opportunities (Riahi et al., 2009; Soethoudt et al., 2018). Fresh tomatoes and tomato products were renowned for being a rich source of bioactive compounds, including carotenes (lycopene and β‐carotene), ascorbic acid, tocopherols, and phenolic compounds (Mihalcea et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Optimization of antioxidant and lycopene extraction from tomato pomace using Hansen solubility parameters and its application in chicken meat preservation

Karoui,

Chaabani,

Dali

et al. 2023

Journal of Food Science

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Tomato pomace, composed of peels and seeds, is often discarded or used as animal feed. However, it contains valuable phytochemicals, including lycopene. Lycopene, a natural pigment, is an antioxidant known for reducing the risk of chronic diseases like cardiovascular ailments and cancer. In this study, we aimed to study the possibility of valorizing tomato pomace by quantifying phenolic compounds, evaluating the antioxidant activity of their extracts, as well as extracting and quantifying lycopene, and studying the effect of tomato peel extract on the oxidative stability of chicken patties during storage. The effectiveness of different solvent mixtures for the extraction of lycopene was evaluated using Hansen solubility parameters (HSPs). The obtained results showed that the best solvent mixture was hexane/acetone (50/50) with a Hansen theoretical distance of 7.2, indicating its favorable solvation power. It also achieved a notable extraction yield of 3.12% and the highest lycopene yield of 20.05 mg/100 g. This combination demonstrated the highest values in terms of total phenolic (24.06 mg equivalent gallic acid/100 g dry matter) and flavonoid content (30.55 mg equivalent catechin/100 g dry matter), indicating a significant presence of these compounds. However, its 1,1‐diphenyl‐2‐picrylhydrazyl (13.51 µg/mL) and ABTS, 2,2'‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulfonic acid, (8.52 µg/mL) IC50 values were comparatively lower than the other mixes. The use of this fraction as a food additive and antioxidant showed significant competitiveness with the conventional preservative, 2,6‐di‐tert‐butyl‐4‐methylphenol. Tomato extract can be considered a potential natural preservative in food preparations due to its high lycopene content.Practical ApplicationThis research provides valuable insights into optimizing the extraction of antioxidants from tomato pomace, using HSPs. The findings have the potential to benefit the food industry by developing improved methods for preserving chicken meat through the application of these optimized antioxidant extracts. By enhancing the preservation process, this study may contribute to extending the shelf life and maintaining the quality of chicken meat, leading to reduced food waste and improved consumer satisfaction.

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Section: Introductionmentioning

confidence: 99%

Optimization of antioxidant and lycopene extraction from tomato pomace using Hansen solubility parameters and its application in chicken meat preservation

Karoui,

Chaabani,

Dali

et al. 2023

Journal of Food Science

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“…There is some supporting infrastructure including the Technical Centre of Organic Agriculture (CTAB), the General Directorate of Organic Agriculture (DGAB), and the National Commission of Organic Agriculture (CNAB). There are subsidies available for organic producers reported as "up to 1,650 USD per farmer and 3,300 USD per company" [13] and as 30% for the cost of equipment specific to organic production and a grant of 70% for certification fees [16].…”

Section: Resultsmentioning

confidence: 99%

Organic Agriculture in Tunisia, Africa

Paull

2024

EJFOOD

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Tunisia reports 279,389 hectares of certified organic agriculture, accounting for 2.87% of the country’s farmland. Most of Tunisia’s organic production is exported. Organic olive oil accounts for 74% of organic exports, and organic dates for 22%. In 2021, Tunisia bid and won the right to host the Organic World Congress (OWC) 2024. After almost half a century of OWCs, the prospective OWS Tunis 2024 was to be the first such event to be held in Africa. It would be an opportunity to showcase Tunisian and African organics, and to provide a welcome impetus to grow the organics sectors of the country and the continent. In 2023, OWS Tunis 2024 was cancelled in the wake of the Covid-19 pandemic, the loss-making OWC Rennes 2021, and changed economic, political and social circumstances. The African continent is an under-performer in organics; 15 countries report no organics, 28 countries report less than 1% organics and only a single country reports greater than 5% (viz. São Tomé and Principe, 21.2%). Tunisia is an organics leader in Africa. The present paper tracks the stop-start growth of the organics sector of Tunisia over the past two decades.

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Tomato value chain analysis in Tunisia : business opportunities : Business opportunities

Cited by 2 publications

References 5 publications

Optimization of antioxidant and lycopene extraction from tomato pomace using Hansen solubility parameters and its application in chicken meat preservation

Optimization of antioxidant and lycopene extraction from tomato pomace using Hansen solubility parameters and its application in chicken meat preservation

Organic Agriculture in Tunisia, Africa

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