Utilization of batuan [Garcinia binucao (Blanco) Choocy] into value added products

The project aimed to develop high value processed products from underutilized, minor batuan [Garcinia binucao (Blco.) Choicy] fruit. Various activities were undertaken by the project team for the development of different products from batuan fruit. Survey of the batuan fruits from various areas or regions in the country was done during the the course of the project implementation. At the same time, information on the existing products and utilization of batuan fruits in particular regions were determined. Among the areas/regions visited by the project team include Iloilo City; Negros Occidental; Puerto Princesa City, Palawan; Ilocos Region; Masbate City; and Guinobatan , Albay. The first year of project implementation was focused on the production of brine fermented and pickled batuan fruits, standardized process for the batuan powder and its utilization into batuan sinigang mix. On the second year, additional potential products from batuan fruit such as concentrate, other forms of souring agent aside from sinigang mix, ready-to-drink juice, juice concentrate, jam and jelly processing. The quality of the products was evaluated based on physico-chemical, proximate composition and sensory properties. In addition, shelf-stability of selected products was determined. The sugar and organic profiles of fresh and processed products from batuan fruits were also determined. Additional study was conducted on the possible hydroxycitric acid (a known anti-obesity substance) content of selected processed batuan products. Overall, the study revealed that batuan can be utilized as a raw material for the production of high value products such as pickles, jam, jelly, concentrate and ready-to-drink fruit juice. Most especially, batuan powder is a potential substitute for tamarind instant soup. Furthermore, with the new findings of the study regarding the considerable high hydroxycitric acid content in fresh and processed batuan products, regular consumption of such products could help minimize the upward trend of obesity problem in the country. With proper technology promotion of the developed batuan products for commercialization, it is also hoped that the demand of this neglected and underutilized fruit will increase which could help the local farmers expand their production and thus become their source of additional income.