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Mosquito Repellent Bioactivity Combination Extract Of Nutmeg Leaf (Myrisctica fragrans Houtt), Lemongrass (Cymbopogon nardus L.) and Apis dorsata Binghami Nests Meisa Tabita Rogahang; Orbanus Naharia; Yermia Semuel Mokosuli
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i3.5037

Abstract

Nutmeg leaf, lemongrass, and bee nests contain bioactive compounds that have potential as mosquito repellents. The purpose of this study was to learn about the bioactivity of a combination extract of nutmeg leaf, lemongrass, and bee nests, as well as to determine the efficient mosquito repellent lotion recipe from a combination of nutmeg leaf, lemongrass, and bee nests extract. The maceration process was used for extraction. Total flavonoid content was estimated by comparing it to the flavonoid quercetin. The absorbance value was measured with a UV-Vis spectrophotometer. The concentration of the extract combination in the lotion used was 0%, 2.5%, 5% and 10%. The total flavonoid concentration was found to be 16.67 mgQE/g. The 2.5% formula lotion has a protective power of 22%, the 5% formula lotion has a power of 62.96%, and the 10% formula lotion has a power of 82.41%. From these results, it can be seen that a formula with a concentration of nutmeg leaf, lemongrass, and bee nests as much as 10% can be the most effective mosquito repellent. The outcomes of this study are expected to help the community select environmentally friendly and safe insect repellents.
ETHNOBOTANICAL STUDY OF MANGROVES FROM COASTAL COMMUNITIES OF BUNAKEN NATIONAL PARK, INDONESIA Nova Laurin Isye Mourein Ogi; Fernando A Watung; Mercy M Rampengan; Meisa Tabita Rogahang; Verawati Ida Yani Roring; Mokosuli Yermia Semuel
BIOTROPIA Vol. 33 No. 3 (2026): BIOTROPIA Vol. 33 No. 3 September 2026
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2026.33.3.2748

Abstract

ARTICLE HIGLIGHTSMangrove species like Acanthus ilicifolius and Avicennia marina aid food and health.Correlation and PCA reveal food, medicine, and firewood as key use dimensions.Location trends: Sondaken for firewood, Baboi for medicine, Mantehage for knowledge.This study supports mangrove ethnobotany and promotes community bioconservation.ABSTRACTMangrove ecosystems play a vital ecological and socio-economic role along coastal regions. However, their sustainable utilization faces significant challenges due to habitat degradation and modernization. This study aimed to characterize the ethnobotanical utilization of mangroves by coastal communities within Bunaken National Marine Park (BNMP) and its surrounding small islands, while exploring their potential for food and medicinal bioprospecting. Data were collected through questionnaire surveys, in-depth interviews with informants, and field observations within coastal communities in four locations such as Bahoi, Likupang Barat District, North Minahasa, Sondaken, Tatapaan District, South, Alung Banua, Bunaken Archipelago District, Manado, and Mantehage, Wori District, North Minahasa Regency. The data were subsequently analyzed descriptively, followed by Principal Component Analysis (PCA) and heatmap visualization. The findings revealed that specific species such as Acanthus ilicifolius and Avicennia marina occupy central roles as sources of food and traditional medicine, emphasizing the close integration between subsistence needs and community health. Correlation analysis and PCA indicated that the categories of food, medicine, and firewood represent the dominant dimensions of utilization, while cultural functions and species knowledge serve as secondary differentiators. Location-based variations underscored the heterogeneity of utilization practices, with Sondaken being more prominent in firewood use, Bahoi in ethnomedicine, and Mantehage in biodiversity knowledge. These findings highlight the necessity of mangrove management that extends beyond ecological conservation to include local wisdom as a foundation for bioprospecting, thereby supporting food security, health, and the well-being of coastal communities. Thus, this research significantly contributed to the literature on mangrove ethnobotany and provided a scientific framework for community-based bioconservation strategies in Indonesia.