Morphology characterization and phytochemical overview of the Moluccan Ironwood Intsia bijuga (Colebr.) Kuntze, a living collection of Purwodadi Botanic Garden, Indonesia

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Melisnawati H. Angio
Elga Renjana
Elok Rifqi Firdiana


As one of the ex situ conservation sites, Purwodadi Botanic Garden (PBG) has Intsia bijuga as its collection with high economic value for its high quality wood. It is categorised as Near Threatened in the IUCN Red List. Its efficacy as herb is due to the presence of its various chemical compounds. The purpose of this study was to characterize the morphology of I. bijuga cultivated in PBG and to reveal its phytochemical compounds, as well as their health benefits. This research was conducted at the PBG in April–May 2020. The plant material was obtained from PBG collection. The plant morphology was characterized by direct observation in the field, while information regarding phytochemical compounds of I. bijuga along with their benefits was obtained by literature review. The data obtained was analyzed descriptively. The results showed that I. bijuga collected by PBG came from Maluku and Java. Both have morphological characteristics that are not very different, i.e., they are trees, they have compound leaves, pale stems with lenticels on their surface, panicle flowers, pod-shaped fruits, and buttress roots. I. bijuga contains polyphenol compounds that have medicinal benefits, such as anti-bacterial, anti-cancer, and anti-viral, hence it has enormous medicinal potential. Due to habitat shrinkage of the species, an effort to have it conserved ex situ is critical.

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Arifiani, D. (2018). Morphological identity of Intsia palembanica Miq. and Intsia bijuga (Colebr.) Kuntze (FABACEAE) [Poster Presentation]. The 3rd International Conference on Tropical Biology “Conservation, Enhancement and Sustainable Use of Indigenous Tropical Flora and Fauna”, SEAMEO BIOTROP.

Barstow, M. (2020). Intsia bijuga. The IUCN Red List of Threatened Species 2020: e.T32310A2813445. Downloaded on 2nd May 2020.

Baskorowati, L. & S. Pudjiono (2015). Morfologi pembungaan dan sistem reproduksi merbau (Intsia bijuga) pada plot populasi perbanyakan di paliyan. Gunung Kidul. Jurnal Pemuliaan Tanaman Hutan 9(3): 159–175.

Cowie, I. & J. Westaway (2012). Threatened Species of the Northern Territory. Accessed on 14th May 2020.

Chandran, H., M. Meena, T. Barupal & K. Sharma (2020). Plant tissue culture as a perpetual source for production of industrially important bioactive compounds. Biotechnology reports 26: e00450.

Finkeldey, R. & H.H. Hattemer (2007). Tropical Forest Genetics. Springer, New York, 315 pp.

GTA (Global Tree Assessment) (2019). Intsia bijuga. The IUCN Red List of Threatened Species. Version 2021-3. Accessed on 11st July 2022

Gunn, S., A. Agiwa, B. Bosimbi, B. Brammal, L. Jarua & A. Uwamariya (2004). Seed Handling and Propagation of Papua New Guinea’s Tree Species. CSIRO, Canberra, 315 pp.

Harris, J.G. & M.W. Harris (2001). Plant Identification Terminology. Spring Lake Publishing, St. Genola, 216 pp.

Henry, D.A. (1988). Side-effects of non-steroidal anti-inflammatory drugs. Baillieres Clin Rheumatol 2(2): 425–454.

Hillis, W.E. & Y. Yazaki (1973). Polyphenols of Intsia heartwoods. Phytochemistry 12: 2491–2495.

Hou, D. (1994). Studies in Malesian Caesalpinioideae (Leguminosae). I.

The genera Acrocarpus, Afzelia, Copaifera, and Intsia. Blumea 38: 313–330.

Hou, D., Leiden, K. Larsen & A.S.S. Larsen (1996). Caesalpiniaceae (Leguminosae-Caesalpinioideae), pp. 409–730. In: Kalkman, C. (ed.). Flora Malesiana: Spermatophyta. (Flowering Plants). Rijksherbarium, Netherland, 740 pp.

Hyene, K. (1987). Tumbuhan Berguna Indonesia I. Badan Penelitian dan Pengembangan Hasil Hutan, Jakarta, 2521 pp.

IUCN (1998). Intsia bijuga. The IUCN Red List of Threatened Species. Downloaded on 16th May 2020. .T32310A9694485.en

Kaulfuß, F. & C. Reisch (2017). Reintroduction of the endangered and endemic plant species Cochlearia bavarica-Implications from conservation genetics. Ecology and Evolution 7(24): 11100–11112.

Koch, M., D. Andrew, B. Kinminja, M. Sabak, G. Wavimbukie, K.M. Barrows, T.K. Matainaho, L.R. Barrows & P.P. Rai (2015). An ethnobotanical survey of medicinal plants used in the East Sepik province of Papua New Guinea. Journal of Ethnobiology and Ethnomedicine 11: 1–26.

Kumar, S. & A.K. Pandey (2013). Chemistry and biological activities of flavonoids : An overview. Phytochemistry 2013: 1–16.

Margono, B.A., P.V. Potapov, S. Turubanova, F. Stolle & M.C. Hansen (2012). Primary forest cover loss in Indonesia over 2000 – 2012. Nature Climate Change 4: 730–735.

Liu, D., Y. Mao, L. Ding & X. A. Zeng (2019). Dihydromyricetin: A review on identification and quantification methods, biological activities, chemical stability, metabolism and approaches to enhance its bioavailability. Trends in Food Science & Technology 91: 586–597.

Norscia, I. (2006). Ethnobotanical reputation of plant species from two forests of Madagascar: a preliminary investigation. South African Journal of Botany 72: 656–660.

Piotrowska, H., M. Kucinska & M. Murias (2012). Biological activity of piceatannol: leaving the shadow of resveratrol. Mutation Research 750(1): 60–82.

Plants of the World Online (2022). Intsia Thouars. Royal Botanic Gardens, Kew.

Pudjiono, S. (2017). The growth variation of merbau (Intsia Bijuga O. Ktze) from shoot cutting of several population at dry area [Paper Presentation]. Proceeding Biology Education Conference 14:195–199.

Rimbawanto, A. & A. Widyatmoko (2006). Keanekaragaman genetik empat populasi Intsia bijuga berdasarkan penanda RAPD dan implikasinya bagi program konservasi genetik. Jurnal Penelitian Hutan Tanaman 3(3): 149–154.

Salehi, B., P. Valere, T. Fokou, M. Sharifi-rad, P. Zucca, R. Pezzani & J. Sharifi-rad (2019). The therapeutic potential of Naringenin. A Review of Clinical Trials 26: 1–18.

Samingan, T. (1975). Dasar-dasar Ekologi Umum. Bagian Ekologi. Departemen Botani IPB, Bogor, 135 pp.

Semwal, K.D., R.B. Semwal, S. Combrinck & A. Viljoen (2016). Myricetin: a dietary molecule with diverse biological activities. Nutrients 8(2): 1–31.

Sirami, E.V., D. Marsono, R. Sadono & M.A. Imron (2019). Typology of native species as the shade tree for merbau ( Intsia bijuga ) plantations in Papua, Indonesia based on ecological species group. Biodiversitas 20(1): 43–53.

Sistem Informasi Katalog Koleksi Tanaman Kebun Raya Purwodadi (2020). Data Koleksi Tanaman Intsia bijuga (Colebr.) Kuntze.

Sostres, C., C.J. Gargallo, M.T. Arroyo & A. Lanas (2010). Adverse effects of non-steroidal anti-inflammatory drugs (NSAIDs, aspirin and coxibs) on upper gastrointestinal tract. Best Practice & Research Clinical Gastroenterology 24(2): 121–132.

Takeuchi, O. & S. Akira (2010). Pattern recognition receptors and inflammation. Cell 140(6): 805–820.

Thaman, R.R., L.A.J. Thomson, R. DeMeo, F. Areki & Cr. Elevitch (2006). Intsia bijuga (vesi), ver 3.1. Species profiles for Pacific Island agroforestry, Permanent Agricultural Resource (PAR).

The Herbarium Catalogue (2022). Intsia bijuga. Royal Botanic Gardens, Kew.

The Plant List (2013). Intsia. Version 1.1.

Tokede, M.J., B.V. Mambai, L.B. Pangkali & Z. Mardiyadi (2013). Antara Opini dan Fakta, Kayu Merbau. Jenis Niagawi Hutan Tropika Papua Primadona yang Dikhawatirkan Punah. WWF Indonesia, Jakarta, 65 pp.

Vincent, J.B., B. Henning, S. Saulei, G. Sosanika & G.D. Weiblen (2015). Forest carbon in lowland Papua New Guinea : Local variation and the importance of small trees. Australian Ecology 40: 151–159.

Widodo, H., A. Rohman & S. Sismindari (2018). Pemanfaatan tumbuhan famili Fabaceae untuk pengobatan liver oleh pengobat tradisional berbagai etnis di Indonesia. Media Penelitian dan Pengembangan Kesehatan 29(1): 65–88.

Ye, X.L., L.Q. Lu, W. Li, Q. Lou, H.G. Guo & Q.J. Shi (2017). Oral administration of ampelopsin protects against acute brain injury in rats following focal cerebral ischemia. Experimental And Therapeutic Medicine 13(5): 1725–1734.

Yudohartono, T.P. & B. Ismail (2013). Adaptabilitas, pertumbuhan dan regenerasi pada plot konservasi ex situ Merbau. Jurnal Pemuliaan Tanaman Hutan 7(3): 179–196.

Zhou, Y., F. Shu, X. Liang, H. Chang, L. Shi, X. Peng, J. Zhu & M. Mi (2014). Ampelopsin induces cell growth inhibition and apoptosis in breast cancer cells through ROS generation and endoplasmic reticulum stress pathway. Plos One 9(2): 1–9.