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Within the framework of the valorization of natural resources, a characterization of the biochemical composition of the edible parts of Adansonia Digitata is applied. The antibacterial effect against bacteria is also realized and compared to some synthetic antibiotics.

The biochemical characterization is carried out according to the norms of the French Association of Normalization, methods of Association of Official Analytical Chemists (AOAC International) and gas chromatography (GC). The antibacterial activity is tested by disk diffusion on a solid medium. Parametric tests are used to compare the differences between groups and heat maps to show the expression of the mean inhibitions according to the studied parameters. Multivariate logistic modeling is applied to study the effect of extracts and antibiotics on bacteria.

Biochemical characterization showed a variable importance of proteins, fibers and total sugars, with the presence of highly desired fatty acids such as palmitic, oleic, stearic, linoleic and a-linolenic acids. This gives the tested parts important energy values, especially in the seeds very rich in fatty acids. Methanol proved to be a better extraction solvent than dichloromethane. Antibacterial activity showed that pulp and leaves extracted with methanol had quite similar inhibitory activities against Enterococcus faecalis ATCC29212 and that this effect was better than some antibiotics. Multivariate analysis showed that the leaves had a similar effect to antibiotics, and a significant effect against Staphylococcus aureus ATCC29213.

This important activity and the attractive nutritional value of this plant could justify its extensive use in the traditional pharmacopoeia.

This paper aims to investigate the moderating effect of political instability and regulatory obstacles on the relationship between corruption and export intensity in the context of Tunisian small- and medium-sized enterprises (SMEs).

This study uses data from the World Bank Enterprise Survey (WBES). The sample consists of 537 Tunisian SMEs. The partial least squares method was used to analyse the data.

The direct effect of corruption on export intensity was found to be non-significant. It was significantly negative when corruption was combined with regulatory obstacles, whereas it was positive when corruption coexisted with political instability. Additional analyses revealed that results were sensitive to firm size (small versus medium) and sector of activity (service versus manufacturing).

This paper has some limitations related to the use of secondary data. Enhanced variable measurements and more detailed data collection are recommended for future studies.

This paper is useful to researchers and policymakers who are interested in understanding the effects of a poor institutional environment on SME exports in developing countries.

This paper considers the impact of corruption on the export intensity of SMEs in the presence of political instability and regulatory obstacles in Tunisia. To the best of the authors’ knowledge, the joint effect of these institutional variables on the exports of firms has not been examined in previous research.