NAKILCIOğLU-TAş Emine, ÖTLEş Semih
Ege University, Department of Food Engineering, Faculty of Engineering, 35040 Izmir, Turkey.
An Acad Bras Cienc. 2020 Jun 12;92(2):e20181387. doi: 10.1590/0001-3765202020181387. eCollection 2020.
Kinetics of color and texture changes in coated button mushrooms were investigated as a function of coating agent's rate (1%, 2% and 3% w/v chitosan). The inner and outer surface colours of mushrooms in terms of CIELAB parameters L*, a*, b*, C*, ° h, ∆E, and Browning Index (BI), and their textural properties in terms of firmness were evaluated. The color values on both sides of the mushrooms except for L* values increased and their firmness decreased with the coating treatment. The color changes of the inner and outer surface of mushrooms and their texture changes followed zero-order reaction models with higher R2 (0.9987-0.9999) and lower RMSE (4.8448 x 10-5-1.6690) and χ2 values (3.9120 x 10-9-4.6425). The 2% chitosan solution was determined to be the most effective coating agent among the coating agents used to extend the post-harvest shelf life by optimally preserving the color parameters of the mushrooms together with their texture properties.
研究了包衣纽扣蘑菇颜色和质地变化的动力学与包衣剂用量（1%、2%和3% w/v壳聚糖）的关系。根据CIELAB参数L*、a*、b*、C*、°h、∆E和褐变指数（BI）评估了蘑菇的内表面和外表面颜色，并根据硬度评估了它们的质地特性。除L*值外，蘑菇两侧的颜色值随着包衣处理而增加，其硬度降低。蘑菇内、外表面的颜色变化及其质地变化遵循零级反应模型，R2较高（0.9987 - 0.9999），RMSE较低（4.8448×10 - 5 - 1.6690），χ2值较低（3.9120×10 - 9 - 4.6425）。在用于延长采后货架期的包衣剂中，2%壳聚糖溶液被确定为最有效的包衣剂，它能通过最佳地保持蘑菇的颜色参数及其质地特性来实现这一目的。
