Journal article

Publication year: 2022

Journal: Food Chemistry

Volume number: 390

ISSN: 0308-8146

eISSN: 1873-7072

DOI Link: https://doi.org/10.1016/j.foodchem.2022.133108

Publisher: Elsevier

Abstract: 

Globalization of trade and increasing demand for baobab fruit pulp powder (Adansonia digitata) has led to more adulteration incidence with physically similar products, e.g. sifted cereal flours. In this study, 135 baobab samples drawn from trees in Kitui and Kilifi (Kenya) and North and South Kordofan (Sudan) were used as the reference and compared with adulterated (with 10-30% sifted rice, maize and wheat flours) baobab samples using multi-imaging by high-performance thin-layer chromatography. The ethanol - water extracts were separated on a normal phase. Any differences were detected via multi-imaging (UV/Vis/FLD) including diphenylamine alanine o-phosphoric acid, p-anisaldehyde sulfuric acid and p-amino benzoic acid reagents. Raffinose was identified as a marker compound for cereal-based adulteration. The method accuracy (recovery of 95%) and detection from 10-30% flour addition onwards are sufficient to curb economically motivated adulteration, to control product quality and to ensure consumer protection for local and international trade.

Harvard Citation style: Chepngeno, J., Imathiu, S., Owino, W. and Morlock, G. (2022) Baobab pulp authenticity and quality control by multi-imaging high-performance thin-layer chromatography, Food Chemistry, 390, Article 133108. https://doi.org/10.1016/j.foodchem.2022.133108

APA Citation style: Chepngeno, J., Imathiu, S., Owino, W., & Morlock, G. (2022). Baobab pulp authenticity and quality control by multi-imaging high-performance thin-layer chromatography. Food Chemistry. 390, Article 133108. https://doi.org/10.1016/j.foodchem.2022.133108