Positive effects of coating of starch from cassava modified and thyme oil applied to pepper (Capsicum annuum)

The pepper (Capsicum annuum) has great agro-industrial potential due to its nutritional and compositional propertiesbut is susceptible to deterioration by their handling conditions that cause loss of product quality and decrease its market value.To avoid the loss of quality, the effect was evaluated of a coating of starch from cassava (Manihot esculenta Crantz)modified and essential oil of thyme (Thymus vulgaris) on weight loss, firmness, respiration rate, skin color andbacterial growth under ambient conditions of Popayan (Cauca, Colombia) to 1 880 m, average temperature of 18?C and relative humidity of 77.75%: T1 control sample, T2= 4% starch, no oil,T3= 4% starch and 500 ppm of oil, T4= 4% starch and 1 000 ppm, and T5= 4% starch and 2 000 ppm oil, plus adding 2% (v/v) glycerol and 0.02% Tween 80.A design was applied in a randomized complete block with five treatments and three replications. Results of an analysis of variance followed by Tukey test (?= 0.05) were subjected. Applying the coating resulted in significant changes in the barrier properties of the product and less weight loss of firmness and deterioration as well as decrease. T3, T4 and T5 treatments were more effective in determining the variables evaluated. FuentesEffect of coating of starch from cassava modified and thyme oil applied to the pepper (Capsicum annuum)D.Y. Ordo?ez1, D. Zu?iga1, J.L. Hoyos1, S.A. Mosquera2 y L.P. Mosquera21Facultad Ciencias Agrarias, Universidad del Cauca, Popay?n, Colombia2Facultad Ciencias Naturales Exactas y de la Educaci?n, Unidad Microscop?a Electr?nica, Universidad del Cauca, Popay?n, Colombia. Email: smosquera@unicauca.edu.coPOST?14, XI Simposio Nacional y VIII Ib?rico sobre Maduraci?n y Postcosecha, Valencia del 21 al 23 de octubre de 2014, http://congresos.adeituv.es/postvlc2014/The image shows the higher firmness in the covered peppers than in the control; it belongs to the full article, published by Revista Mexicana de Ciencias Agr?colas Vol.5 N?m.5 30 de junio - 13 de agosto, 2014 p. 795-805 y accesible m?s abajo.Key wordPoscosecha??? postcosecha??? postharvest??? na-oes??? ?? ??? ????????? ???????? post-r?colte??? ???? ?? ??????????????? na-oogst??? post-raccolta??? Obr?bka po??? p?s-colheita??? ????????????????? hasat sonras??????? Ernte??? ????????????????? ???? ?????????????? postcollita??? poskliz?ov頠? ????? ?? ??????? nakon branja??? pozberov頠???? obdelovanje zemlje po??? post-colleita??? ????? ???????? pascapanen??? ?il?onn postharvest??? ??????? p?c ra?as??? derliaus apdirbimas po??? lepas tuai??? ?? ?? ????????? post-recoltare??? ?????? ???????? ???????????????????? ?????????????? ?????????????????? sau thu ho?ch??? ?????????????????? zangemva kwenkathi yokuvuna??????? Pimiento??? morr?n??? pepper??? peper??? ??????? ????? pipro??? poivre??? ????????? ???? ??????????? pepe??? pieprz??? pimenta??? ???????? biber??? ???? ????