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Green Synthesis of Silver Nanoparticles with Snake Fruit Peel Extract: A Preliminary Study For Optimization of The Preparation Technique Kusumahastuti, Dewi K. A.; Cahyanti, Margareta N.; Aminu, November R.; Jumiyati
Jurnal Penelitian Pendidikan IPA Vol 10 No 5 (2024): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i5.7481

Abstract

In Indonesia, the pulp of snake fruit is consumed while the peel remains unused. In this context, the phytochemical content of snake fruit aqueous extract was used as a reducing and capping agent in the preparation of silver nanoparticles (AgNPs). According to the phytochemical screening, snake fruit peel containing alkaloids, flavonoids, tannins, saponins, and polyphenols was used to synthesize AgNPs. Therefore, this research aimed to optimize the synthesis of AgNPs using snake fruit peel extract (Salacca zalacca) in terms of synthesis time, temperature and phytochemical screening. AgNPs were successfully synthesized using a volume ratio of 2:15 (20 mL of 1.00 mM AgNO3 to 150 mL of snake fruit peel extract) in a sealed container in a dark room. Furthermore, characterization was carried out using a UV-Vis spectrum and Fourier Transform Infrared Spectroscopy (FTIR). The UV-Vis spectrum characterization in a solution incubated for 30 minutes at 30 °C with a concentration of 1.00 mM AgNO3 was differentiated at a wavelength of 410 nm with an absorbance of 2.361. According to the FTIR characterization, there was an increase in the intensity of the O – H functional groups in the AgNPs solution compared to snake fruit peel extract. The results showed that the synthesis of AgNPs from snake fruit peel extract was optimal at a concentration of 1.00 mM AgNO3 at 30 °C and 30 minutes of incubation.
Kolaborasi Ekotoksikologi-Toksikologi Untuk Meningkatkan Kesadaran Lingkungan Di Kampung Batik Laweyan: Aspek Ekotoksikologi Cahyanti, Margareta Novian; Hartini, Sri; Kusumahastuti, Dewi K.A.; Aminu, November R.; Susilowati, Indah T; Dewi, Noviana; Anggaran, Diki; Kristanti, Vincentia N. P.; Cahyo, F.D.; Saputri, K
Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2025): Juli-Desember
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jpmittc.v4i2.3162

Abstract

Dye waste, whether derived from synthetic or natural substances, can pollute the environment if not properly managed. This pollution can degrade the quality of water, soil, and nearby ecosystems. In Kampung Batik Laweyan, one of the well-known batik centers in the Surakarta area, improper waste management poses a serious threat to the sustainability of the batik industry and the health of the surrounding community. A major issue lies in the lack of awareness and understanding about the ecotoxicological effects of dye waste, particularly synthetic dyes, which often contain heavy metals and harmful chemicals. This community service activity was initiated to address this issue through education and empowerment. The main objective was to increase knowledge about the environmental and health hazards posed by dye waste. Activities included health check-ups, questionnaire distribution to assess baseline understanding, educational sessions on ecotoxicology, and practical training on the use of batik brushes. This training aimed to reduce direct skin exposure to harmful substances and minimize the overuse of dyes during the batik-making process. The results showed a significant improvement in participants’ awareness of the risks associated with synthetic dyes, including heavy metal exposure and their long-term effects on aquatic life and soil organisms. Participants also gained better insight into sustainable waste management practices. In conclusion, the program successfully raised awareness and encouraged more responsible behavior among batik artisans. It is hoped that such initiatives can continue to promote environmentally friendly practices in the traditional batik industry, contributing to a healthier ecosystem and safer working conditions.