Towards Acacia seyal protocol in Sudan: Preliminary study pertinent to colour identification and physiochemical properties

The physiochemical properties within the tested samples and across the production areas showed no significant differences between all parameters including moisture content, ash content and pH. The specific optical rotation varies from + 40 to + 60 within the samples and across the different production areas. However, both minimum and maximum values of specific optical rotation were obtained from Hejleij production area and representing light and dark colour, respectively.