Feasibility assessment on the use of near infrared hyperspectral imaging for the screening of vitamin C content and total soluble solids in strawberries.

Abstract

At market, strawberries are usually picked based on their external attributes, basically surface color. However, internal parameters are also important for the final quality of the fruit and, therefore, can strongly influence acceptance by consumers. The development of analytical methods that allow the evaluation of the strawberry internal quality in a rapid, cost-effective and environmentally friendly way will improve competitiveness in the fruit industry and profitability at markets. In this study, a feasibility assessment on the use of near infrared hyperspectral imaging for the control of the internal quality of strawberries from Huelva (an important strawberry exporting region) has been carried out. For it, modified partial least square regressions have been performed for the screening of vitamin C and total soluble solids. The standard errors of prediction in external validation (4.71 mg/100 g and 1.28 °Brix respectively) demonstrate the potential of the analyzed technique for the proposed objective.

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