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Biodiversitas Journal of Biological Diversity
Published by Universitas Sebelas Maret
ISSN : 1412033X     EISSN : 20854722     DOI : https://doi.org/10.13057/biodiv/d230231
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
The Biodiversitas Journal was first published in 2000 by the Department of Biology, FMNS, Universitas Sebelas Maret, Surakarta, Indonesia, then in 2006 it was co-published by the Society for Indonesian Biodiversity and that department; since 2017 it was also hosted by Smujo. From 2003-2012 it was accredited by DGHE, Ministry of Education, R.I., since 2014 was indexed by Scopus, where DOAJ and Google Scholar was indexed first.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 6,322 Documents
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Stingless bee (Apidae: Meliponini) diversity and resin foraging resources in mangosteen orchards of West Sumatra, Indonesia HARIZQI AZRI; HENNY HERWINA; RITA MALIZA; JASMI JASMI
Biodiversitas Journal of Biological Diversity Vol. 27 No. 8 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270814

Abstract

Abstract. Azri H, Herwina H, Maliza R, Jasmi. 2026. Stingless bee (Apidae: Meliponini) diversity and resin foraging resources in mangosteen orchards of West Sumatra, Indonesia. Biodiversitas 27 (8): d270814. https://doi.org/10.13057/biodiv/d270814. Mangosteen (Garcinia mangostana) orchards in West Sumatra, Indonesia, provide resin, nectar, and pollen for stingless bees, yet baseline data on Meliponini diversity in inland orchards remain limited. This study quantified species richness, diversity, and bee-plant resource associations at four orchard sites (188-488 m asl) in Solok, Tanah Datar, Sijunjung, and Sawahlunto, West Sumatra. Monthly surveys throughout 2024 recorded seven stingless bee species (Apidae: Meliponini): Heterotrigona itama, Geniotrigona thoracica, Tetragonula fuscobalteata, Tetragonula laeviceps, Lepidotrigona ventralis, Tetragonula minangkabau, and Homotrigona apicalis. Species richness per site ranged from 3 (Lintau) to 5 (Gauang, Sijunjung, Kayu Gadang). Shannon-Wiener diversity was highest at Gauang (H': 1.61) and lowest at Lintau (H': 1.05). Vegetation surveys recorded 33 plant species in 20 families; 17 provided resin or latex and 23 provided nectar and/or pollen, all assigned by direct forager observation. Exploratory correlations indicated negative associations between air temperature and diversity and positive associations between daily foraging time and diversity; with only four sites, these patterns are descriptive. Retaining diverse resin- and nectar-provisioning vegetation in mangosteen agroforestry is expected to support Meliponini communities; effects on propolis yield and chemistry require dedicated trials.
Comparative evaluation of α-glucosidase inhibitory potential of six Berberis species from the Nepal Himalaya TRISHNA GOSWAMI; DEEPAK RAJ PANT; GIRI PRASAD JOSHI
Biodiversitas Journal of Biological Diversity Vol. 27 No. 8 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270818

Abstract

Abstract. Goswami T, Pant DR, Joshi GP. 2026. Comparative evaluation of α-glucosidase inhibitory potential of six Berberis species from the Nepal Himalaya. Biodiversitas 27 (8): d270818. https://doi.org/10.13057/biodiv/d270818. The present study evaluated the in vitro α-glucosidase inhibitory activity of methanolic stem bark extracts from Berberis angulosa, B. aristata, B. asiatica, B. glaucocarpa, and B. thomsoniana, and extracts of the entire stem (stem and leaves) of B. karnaliensis. Total Phenolic Content (TPC) and Total Flavonoid Content (TFC) were determined using the Folin-Ciocalteu method and aluminum chloride colorimetric methods, respectively, while in vitro α-glucosidase inhibitory activity was assessed through an α-glucosidase inhibitory assay. All quantitative data were measured in triplicate. Among the species, the highest TPC was recorded in B. aristata extract (23.6±0.78 mg GAE g-1 extract), while the lowest was observed in B. karnaliensis extract (10.65±0.16 mg GAE g-1 extract). B. aristata extract had the highest TFC (27.37±0.22 mg QE g-1 extract), and the lowest in B. angulosa extracts (0.65±0.10 mg QE g-1 extract). Of the six tested species, B. karnaliensis exhibited the strongest α-glucosidase inhibitory activity, with an IC50 value of 14.72±3.15 μg/mL), significantly lower than that of Acarbose (p≤0.05). Further fractionation revealed that the hexane fraction of B. karnaliensis possessed the highest inhibitory activity. LC-MS annotation of the hexane fraction suggested the presence of two compounds (isosakuranetin and reserpine) previously associated with α-glucosidase inhibitory activity. Comparative evaluation of the bark extracts revealed that all investigated Berberis species, except B. aristata and B. thomsoniana, exhibited stronger α-glucosidase inhibitory activity than acarbose. Notably, the aerial parts of B. karnaliensis showed the highest inhibitory activity, suggesting that this species may be a promising alternative to B. aristata, which has long been used in traditional medicine for diabetes management. The findings indicate that B. karnaliensis warrants further investigation as a potential source of α-glucosidase inhibitory constituents.

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