Abstract
Studying the stability of the raw material as a function of the storage time is fundamental to establish the characteristics performance and to determine the period that it should be stored. The objective of the present study was to evaluate the stability of the alcoholic extract for 28 days of storage. It was performed in a completely randomized and split-plot design (3x5) with 3 repetitions and using the following formulation: 500 g of banana components (peel, pulp or peel plus pulp), 1000 mL of cereal alcohol 96 ºGL and maceration process for fifteen days. Filtered alcoholic extracts were stored in a dark place at room temperature for analysis of colorimetric parameters Luminosity, hue, chroma, chromaticity a* and chromaticity b*. Results showed that storage period for 28 days significantly affected stability, promoting notable reduction in Luminosity, hue, chromaticity b* and chroma and also increased the chromaticity value chromaticity a*. It was observed that the banana pulp alcoholic extract showed the highest values for Luminosity and hue, and the banana peel alcoholic extract stood out in relation to the chromaticity chroma, chromaticity a* and chromaticity b*. The information obtained through colorimetric parameters can be used by the food industry to establish procedures that mitigate the effects of the storage period in the raw material, since the characteristics inherent to the raw material are significantly changed over time and result in changes in the quality of the final product.
Highlights
Banana (Musa spp.) belongs to the Musaceae family and has its centre of origin on the Asian continent, where diploid, triploid and tetraploid banana trees can be found
The objective of the present study was to evaluate the stability of the alcoholic extract for 28 days of storage
Filtered alcoholic extracts were stored in a dark place at room temperature for analysis of colorimetric parameters Luminosity, hue, chroma, chromaticity a* and chromaticity b*
Summary
Banana (Musa spp.) belongs to the Musaceae family and has its centre of origin on the Asian continent, where diploid, triploid and tetraploid banana trees can be found. It is one of the most consumed fruits in the world (Fioravanço, 2003) being grown by 107 countries (Silva et al, 2013). In 2017, the world banana production reached 125.3 million tons. The biggest producers were India with 30.5 million tons, China with 22.8 million tons, Indonesia with 7.2 million tons, Brazil with 6.7 million tons and Ecuador with 6.2 million tons. The world's largest consumer was China (FAOSTAT, 2017).
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