Postharvest processing is crucial to success in utilizing Sargassum sp. as a raw material in tea production. Postharvest pre-treatment and drying processes can cause fishy flavor and nutrition loss; therefore, these effects need to be understood and managed. In this study, we evaluated the effect of deodorization technique and drying method on the final quality of dried algal samples. Sargassum duplicatum harvested from Talango Island, Sumenep, was used in the study. Algal samples were immersed in a water suspension of Tectona grandis charcoal at concentrations of 5, 10, and 15 %w/v for 6, 12, and 18 h, and then dried using three different drying methods: oven drying, sun drying, and air drying. The study showed that immersion in a suspension of 15% w/v charcoal for 18 h was the best method to deodorize the algal samples reducing the amount of phenols, flavones, and fishy flavor; however, future work on optimization of deodorization of brown algae by using charcoal suspension was suggested. Different drying methods generated different final dried algal sample characteristics such as the amount of phenols, flavones, antioxidant activity, and profile of volatile compounds. Air drying was found to be the best method in this study in retaining the total phenolic content and total flavonoid content, followed by sun drying and oven drying. Overall, deodorization using charcoal from T. grandis, followed by air drying was demonstrated to be a set of traditional approaches successful for postharvest processing of brown seaweed for use as a tea raw material.

收获后加工对于成功利用Sargassum sp。至关重要。作为茶叶生产的原料。收获后的预处理和干燥过程会导致鱼腥味和营养损失；因此，需要了解和管理这些影响。在这项研究中，我们评估了除臭技术和干燥方法对干燥藻类样品最终质量的影响。该研究使用了从苏梅内普（Sumenep）的塔兰戈岛（Talango Island）收获的Sargassum duplicatum。将藻类样品浸入Tectona grandis的水悬浮液中以5、10和15％w / v的浓度放置6、12和18小时的木炭，然后使用三种不同的干燥方法进行干燥：烤箱干燥，日光干燥和空气干燥。研究表明，在15％w / v的木炭悬浮液中浸泡18 h是对藻类样品进行除臭的最佳方法，从而减少了酚，黄酮和鱼腥味的含量。然而，建议通过使用木炭悬浮液来优化褐藻除臭的未来工作。不同的干燥方法会产生不同的最终干燥藻样品特性，例如酚含量，黄酮含量，抗氧化活性和挥发性化合物的概况。发现风干是保留总酚含量和总黄酮含量的最佳方法，然后进行日光干燥和烤箱干燥。总体而言，使用T. grandis继之以空气干燥被证明是一套成功的传统方法，可成功地将褐藻用作茶叶原料进行收获后加工。