Premna trichostoma Miq. (Lamiaceae) mainly distribute in Asia including Thailand. Folk healers use this plant to treat fever as a juice splash and bathe. The aims of this study are to evaluate the quantity of active constituents and antioxidant activity of P. trichostoma leaf extract. Total phenolic compounds were determined using Folin-Ciocalteu method. Total flavonoid contents were determined by Aluminum chloride method. The amount of apigenin and kaempferol contents were analyzed by high performance liquid chromatography (HPLC). In addition the antioxidant activity was evaluated by DPPH and ABTS assay. The results showed that total phenolic contents total flavonoid contents and the amount of apigenin and kaempferol of P. trichostoma leaf extract was 46.45±15.30 mg GAE/g extract 25.48±2.02 mg CE/g extract 11.16±0.04 and 4.54±0.08 µg/g extract respectively. The IC50 values from the DPPH and ABTS assay was 117.50±1.22 and 36.14±1.53 µg/ml respectively. This study shows the antioxidant properties and active constituents of P. trichostoma leaf extract which indicates the potentials for further development of this plant

The research team aimed to develop the cracking and extracting processes for Ganoderma lucidum (Red Lingzhi) spores and transfer the technology in the form of soap bar and liquid products together with the cracking and extraction process to the community at Farm Haid Klang Ban in Pathumthani Province. From the study since higher more bioactive compounds found in the aforementioned Ganoderma (Lingzhi) spore extracts over its basidiospore itself the optimized breaking and extraction procedure were composed of freezing at -20oC for 2 days bead beating for 5 minutes and then spore fermented with Lactobacillus spp. at room temperature for 24 hours. The processes could provide more than 65 percentages of the spore fracture efficiency and obtain more active substances such as polysaccharides and triterpenoids Moreover the spore extraction process was required by shaking in ethanol dissolved in distilled water at the ratio 80:20 for 2 hours. The obtained bioactive Lingzhi spore extracts as one active ingredient was added into the saponification process to make soap bar and liquid product. It was found that the soap products could create satisfaction and good feedback from high-level consumers of the farm community in Pathumthani Province. The research should therefore be successfully applied in the form of commercial red lingzhi extract soap in the manner of integration of science and community with knowledge of efficient Red Lingzhi spore cultivation and separation. It can help the development of community enterprises can bring up sustainable economic development in the country in the future.

This research investigated the effect of antibacterial activity of Guava leaves extract. Antibacterial activity was determined by agar well diffusion method and test with Staphylococcus aureus Bacillus cereus and Escherichia coli. The results showed that Guava leaves crude extract best inhibited the growth of Bacillus cereus followed by Staphylococcus aureus and Escherichia coli with a mean inhibition zone was 22.0 ±0.3 19.00 ± 0.2 and 14.5 ± 0.3 mm respectively. When comparison antibacterial activity between Guava leaves extract with ampicillin 0.010 mg.

In order to maintain food and materials including drying products at the original dried condition silica gel can be one choice for absorbing moisture. Most silica gel is packed in an Parcel made from plastic which is difficult to naturally degrade thus causing environmental problems. This research therefore have developed packaging material from agricultural waste corn husks for absorbing moisture from food rice. From the study it was found that the corn husk paper had characteristic of smooth paper surface. When making it into a corn fiber Parcel its maximum moisture absorption from saturated humidity was 9.22±0.92% and it could absorb the moisture from the rice stored at room temperature when compared to the plastic sachet at 8.26±0.50% and 9.30±0.08% respectively. When coated with kaffir lime oil extract the corn husk Parcel had the capability in anti-fungus commonly habituated in corn husks up the concentration of 15000 ppm. It could naturally be degraded within 12 days. Therefore with these advantageous qualification the natural Parcel made of corn husk paper harboring silica is for moisture absorption as sustainable and environmental conservation material.

The study used the fruit of Ficus hispida Linn to separation by maceration and sequential extraction method with hexane ethyl acetate and methanol to crude extracts. Crude extracts were assessed for their antioxidant activities tested using DPPH radical scavenging assay total phenolic contents tested using the Folin–Ciocalteu method The results showed that 1. Phytochemical examination of the extracts of F. hispida alkaloids condensed tannins phenolic compounds triterpenes steroids cardiac glycosides anthraquinones 2. Hexane Ethylacetate and Methanol extracts have the ability to reduce the amount of DPPH. The EC50 values were> 1000 285 and 30 g/ml respectively. 3. Hexane Ethylacetate and Methanol extracts contained phenolic compounds values of 3.09 55.25 and 99.59 mg GAE/g dw respectively.