Flower bagging effects on the α-mangostin content during mangosteen fruit growth

Abstract

Mangosteen fruit (Garcinia mangostana L.) is consumed mainly for two purposes, i.e., its aril for fresh or minimally processed products and its rind for herb and other health-related products. In fact, due to the high portion of rind compared to its whole fruit, its rind has a more important economic value, especially for its α-mangostin content. This study reported the effects of flower baggings on the α-mangostin content during mangosteen fruit growth. This field research was conducted in a farmer’s field at Gisting village, Tanggamus District, Lampung Province, Indonesia. The study was arranged in a 2 × 3 factorial design. The first factor was bagging date [2 and 4 weeks after anthesis (WAA)], and the second one was bagging material (unbagged or control, banana ‘Cavendish’- paper bag, and balloon). Fruit samplings were conducted in every two weeks during the periods of 8-16 WAA. The α-mangostin content was analyzed with HPLC [DionexUltiMate® 3000, autosampler, column compartment, Ultimate 3000 pump, UV detector, column Enduro C-18 (250 mm × 4.6 mm, 5 µm) with C18 guard]. The results showed that the α-mangostin content increased in a sigmoid pattern during fruit growth, and the increase was mostly not affected by bagging, bagging materials, and application periods. The α-mangostin content increased tremendously during 10-14 WAA, regardless of bagging, bagging materials and application periods. Bagging had resulted in the decrease of α-mangostin content during the latest period of fruit growth, regardless of bagging materials and application periods

Anthocyanin physiology and biochemistry in fleshy fruit species: Mangosteen as a model

“…Similarly, Akmal et al (2023) reported that mangosteen fruit, located either outside or inside the canopy, that were enclosed with either transparent or black plastic bags showed no differences in fruit color development. The α-mangostin content in the pericarp increased markedly during the 10-to 14-week period after anthesis, and that increase was not affected by bagging, bagging materials, or application periods (Widodo et al, 2021). In each of the experiments mentioned above, the bagging treatments were limited, and bagging removal was not investigated to determine if subsequent light exposure affected anthocyanin accumulation and the expression of genes in the anthocyanin biosynthetic pathway.…”