The residents of the Eastern part of Indonesia, specifically, Papua and West Papua provinces, are dependent on traditional medicines with the use of plants, which includes treating malaria. However, there are limited information on the diversity of medicinal plants in Papua Island. Hence, the Indonesian Ministry of Health put together a database of all the natural plant-based raw materials in Indonesia, to address part of the issues encountered as a result of the limited information on the diversity of plants. Based on this background, the aim of the research was to analyze the information on medicinal plants used by the traditional healers in Papua Island based on the results of research on medicinal plants and Jamu (RISTOJA), especially in treating malaria. Data were obtained through ethnomedicine research conducted in 2012 and 2017 involving 54 ethnicities in Papua. Based on the results, 72 species of medicinal plants from 67 genera and 40 families were used traditionally in treating malaria on Papua Island. The most common medicinal plants used as traditional antimalarial concoction are Alstonia scholaris (L.) R. Br., Carica papaya L., Andrographis paniculata (Burm. f.) Nees, and Physalis minima L. Similar to other ethnobotany research, the leaves were the most used plant parts in preparing the various traditional concoctions.

The bark of Cinnamomum burmannii Blume is the main raw material of Cinnamomum oil because its cinnamaldehyde content is higher than in the other parts. This condition lead to the exploitation of Cinnamomum burmannii Blume bark without any cultivation effort, thus it can cause the raw material scarcity. Twigs and leaves of Cinnamomum burmannii Blume are also known to contain cinnamaldehyde therefore it provide a potential alternative source of cinnamaldehyde. The purpose of this research is to investigate the characteristic of Cinnamomum burmannii Blume essential oil which includes refractive index, profiling of chemical constituent and percentage of cinnamaldehyde as a marker compound. This research used three fresh Cinnamomum burmannii Blume simplicia of bark, twigs and leaves from two selected growing locations: Tawangmangu and Purwokerto. Simple water distillation method was conducted, together with characterization and refractive index using refractometer, followed by qualitative and quantitative analysis with Thin Layer Chromatography (TLC) and Gas Chromatography (GC). The results showed Cinnamomum burmannii Blume oil derived from bark, twig and leaf have different profiles, but all have cinnamaldehyde as the main component. The leaf produces higher essential oil yield percentage compared to the twig with a cinnamaldehyde content that is comparable to the bark by 50% of cinnamaldehyde content in cinnamomum bark oil.

The use of gempol (Nauclea orientalis (L.) L) stem as a malaria medicine has been empirically and scientifically proven. This condition encourages exploitation which can lead to scarcity of raw materials. Substitution of plant parts as raw material for medicine is one of the innovations that can be done for the sustainability of the plant species. Leaves are one part of the plant that is often used as a raw material for medicine. The selection of leaves as the main ingredient has many advantages over other parts. Until now, research related to the antimalarial bioactive potential of N. orientalis (L.) L leaves has not been published. Therefore, this study aimed to explore the potential for leaf antimalarial activity as an alternative to substitution of stem parts. The leaf extract of N. orientalis (L.) L was prepared by maceration method with 96% ethanol then fractionation was carried out in stage using hexane, ethyl acetate and methanol as solvents. Antimalarial activity testing was carried out in vitro against Plasmodium falciparum 3D7 and Thin Layer Chromatography (TLC) for screening phytochemical compounds in each sample. The hexane solvent was known to produce the most optimum extract by with a yield of 20%. The antimalarial activity of the hexane (IC 50 1.93 μg/mL) and methanol (IC 3.91 μg/ mL) fractions were classified as ‘very active’ and had a tendency to be able to compete with chloroquine phosphate activity. The potential for antimalarial activity in both samples was influenced by the content of alkaloids, steroids, flavonoids and terpenoids which had been developed as active ingredients for malaria drugs. The results of this study indicate that the leaves of Nauclea orientalis (L.) L have the potential to be developed as an alternative to malaria medicine. Abstrak Pemanfaatan batang gempol (Nauclea orientalis (L.) L) sebagai obat malaria telah terbukti secara empiris dan ilmiah. Kondisi tersebut mendorong terjadinya eksploitasi hingga dapat berujung pada kelangkaan bahan baku. Substitusi bagian tumbuhan sebagai bahan baku obat merupakan salah satu inovasi yang dapat dilakukan untuk keberlanjutan hidup spesies tumbuhan tersebut. Daun merupakan salah satu bagian tumbuhan yang sering digunakan sebagai bahan baku obat. Pemilihan daun sebagai bahan utama memiliki banyak kelebihan dibandingkan bagian lainnya. Penelitian terkait potensi bioaktif antimalaria daun Nauclea orientalis (L.) L hingga saat ini belum dipublikasikan. Oleh karena itu, penelitian ini bertujuan untuk menggali potensi aktivitas antimalaria daun sebagai alternatif subtitusi bagian batang. Ekstrak daun Nauclea orientalis (L.) L disiapkan dengan metode maserasi dengan etanol 96%, kemudian dilakukan fraksinasi cair-cair bertingkat menggunakan pelarut heksana, etil asetat, dan metanol. Pengujian aktivitas antimalaria dilakukan secara in vitro terhadap Plasmodium falciparum 3D7 dan Kromatografi Lapis Tipis (KLT) untuk penapisan senyawa fitokimia pada masingmasing sampel. Pelarut heksana diketahui menghasilkan ekstrak paling optimum dengan rendemen 20%. Aktivitas antimalaria fraksi heksana (IC 50 1,93 µg/mL) dan metanol (IC 3,91 µg/mL) yang tergolong dalam kategori ‘sangat aktif, serta memiliki kecenderungan mampu bersaing dengan aktivitas klorokuin fosfat. Potensi aktivitas antimalaria pada kedua sampel tersebut dipengaruhi oleh kandungan senyawa alkaloid, steroid, flavonoid dan terpenoid yang telah banyak dikembangkan sebagai bahan aktif obat malaria. Hasil penelitian ini menunjukkan bahwa daun Nauclea orientalis (L.) L berpotensi untuk dikembangkan sebagai alternatif obat malaria.

Abstract. Praptosuwiryo TNg, Isnaini Y. 2017. Morphological variations and sex expression in gametophytes of . Characteristics of gametophytes in ferns have been shown to be phylogenetically significant. Studies of fern gametophytes have become essential to fill the gaps in our knowledge of fern morphology, ecology, reproduction, evolution and distribution. The purposes of this study were: (i) to observe morphological variations and sex expression in gametophytes of Cibotium barometz (L.) J. Sm., and (ii) to understand how gametophyte densities affect sex expression in the species. Spores of five collection numbers of C. barometz from Sumatra, Indonesia, were sown on half-strength Murashige & Skoog (½MS) basal medium. Eleven weeks after germination of spores, prothalli were subcultured on ½MS medium along with sugar (30 g/L) and Naphthalene Acetic Acid (NAA, 0.5 mg/L). After eight months subculturing of prothalli (prothallus density: 100-150 individuals per cm 2 ), 100 gametophytes were observed for each collection number to determine their shapes and sex expression. Between 9-12 months after subculturing, gametophytes growing at different population densities (between 100-500 individuals per cm 2 ) were sampled. One hundred prothalli were selected among the ten replicates for each collection number. The percentage of each identified gametophyte shape and their genders were recorded. Eight morphological types of adult gametophyte were recorded: (i) Branching filament (asexual), (ii) ribbon-like shape (male), (iii) spatulate shape (asexual, male, female), (iv) heart shape (male, female, bisexual), (v) gemmiferous heart shape (asexual, female, bisexual), (vi) long heart shape (male, bisexual); (vii) gemmiferous long heart shape (asexual, male, bisexual), and (viii) gemmiferous irregular shape (asexual, male, female, bisexual). We conclude that gametophyte morphology is simply "too plastic" to be used in suporting species delimitation in ferns if the prothalli is to be cultured in a high population density. There is a correlation between gametophyte size, shape and sex expression that is related to the population density. The presence of unisexual and bisexual gametophytes indicates that both intergametophytic and intragametophytic selfing occur in C. barometz.

Pegagan or Centella asiatica (L.) Urb. empirically used as medicinal plant and scientifically can be used as antihypertension based on the results of the Jamu Saintification. Raw materials from C. asiatica have the potential to occur adulteration or incorrect use of plants species. There are two species of plants that have the potential to become adulterants of C. asiatica, namely Hydrocotyle verticillata and Merremia emarginata. Thus, the purpose of this study is to authenticate from Pegagan by comparing the macroscopic, microscopic, and chemical profiles of C. asiatica, H. verticillata, and M. emarginata. The method of data collection is done by purposive sampling using form intruments to record macroscopic and microscopic characters, while the chemical profiles are tested using thin layer chromatography methods to determine the content of asiaticosides in both potential adulterants species. The research was conducted at three sampling points: Central Java (Tawangmangu), West Java (Bogor), and East Java (Malang), while for laboratory research activities carried out at B2P2TOOT, Tawangmangu. The results showed macroscopically unique and easy distinguishing characters between C. asiatica and potential adulterant species H. verticillata is a leaf shape, whereas C. asiatica with M. emarginata are leaf-type appearance characters. The character of the simplicia leaf shape between C. asiatica and H. verticillata can be a distinct differentiator characters. Anatomical characters and powder fragments that can be used as a differentiator characters between C. asiatica and H. verticillata are the presence of pith on the stalk and stolon, the type of stomata, and the presence of trichomes. Authentication of simplicia powder of H. verticillata as an adulterant potential of C. asiatica with TLC, can be easily known by the absence of asiaticosides in these simplicia so that H. verticillata cannot be a substitute species for C. asiatica

<em>Paliasa (</em>Kleinhovia hospita<em>) is known as a plant that has been used empirically for malaria treatment, especially in Eastern Indonesia. However, scientific publications regarding to the antiplasmodial activity of these natural resources are still limited. The aim of this study was to examine the potency of paliasa leaves as antiplasmodial against </em>Plasmodium falciparum<em> parasite. The procedure included sample and extract preparation, antiplasmodial in vitro activity testing on </em>P. falciparum<em> strain 3D7, and phytochemical screening using Thin Layer Chromatography (TLC). The extracts and fractions were prepared through maceration process for 72 hours with 96% ethanol, then continued with multilevel liquid-liquid partition using hexane, ethyl acetate and 96% methanol. Antiplasmodial </em>in vitro<em> testing showed that ethyl acetate (IC₅₀ </em><em>1.08</em> <em>µg.ml^-1</em><em>) and hexane (IC₅₀ 1.24 µg.ml^-1) fractions were include to the highly activity category. The research samples contained alkaloids, triterpenoids and steroids as the major compounds. The terpenoid alkaloid compound was a cycloartane triterpenoid alkaloid that had been isolated from paliasa leaves. Therefore, it is assumed that the leaf of palasia has a compound with antiplasmodial activity. However, more research needs to be done to determine the active compound and the antiplasmodial mechanisms involved</em>

Mentha × piperita L., also known as peppermint, is a plant with various uses, including medicine, cosmetics, and food. Numerous industries have a high need for peppermint products, but Indonesia is currently unable to meet this demand and should continue to import peppermint. One effort can be made to improve cultivation procedures, and tissue culture becomes one alternative. This research uses shoots as explants with Murashige & Skoog's basic media and growth regulators BAP and NAA. The research was conducted in two phases: six-week initial planting and seven-week subculture. The treatment of BAP 4 mg/L + NAA 0.5 mg/L provides better performance for the number of leaves, and BAP 3 mg/L produced the best response regarding the number of shoots. Furthermore, BAP 1 mg/L + NAA 1 mg/L produced the best response to shoot height and number of leaves, and BAP 3 mg/L + NAA 0.5 mg/L generated the best response to root length. Based on the research, BAP 3 mg/L is the optimal treatment.

<p>Temu mangga (<em>Curcuma mangga</em> Val) termasuk tumbuhan dari famili Zingiberaceae yang telah umum dimanfaatkan oleh masyarakat sebagai bahan baku dalam pengobatan tradisional. Rimpang temu mangga diketahui memiliki aktivitas antioksidan, antitumor, antijamur, antibakteri dan antialergi. Sediaan rimpang temu mangga sebagai bahan baku jamu atau obat tradisional dimasyarakat umumnya berupa simplisia kering sehingga dapat disimpan dalam waktu yang lama. Faktor lama masa penyimpanan simplisia diketahui dapat mempengaruhi kualitas suatu jenis simplisia. Dilain hal, terdapat metode blansir yang dikenal sebagai salah satu tahapan dalam proses pengawetan bahan organik, seperti sayur dan buah. Fungsi penting metode blansir, diantaranya mampu menurunkan kadar air, meminimalkan cemaran mikroba dan menginaktifasi enzim. Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan blansir terhadap kualitas simplisia temu mangga setelah masa simpan tertentu. Tahapan penelitian ini meliputi pemilihan sampel sediaan simplisia rimpang temu mangga, perlakuan blansir yang dilakukan dengan variasi waktu yaitu 1, 3 dan 5 menit, serta pengujian kualitas sampel yang mencangkup parameter kadar susut pengeringan, angka cemaran mikroba, kadar sari larut air dan alkohol. Hasil penelitian menunjukkan bahwa perlakuan blansir dapat menurunkan angka cemaran mikroba, tetapi tidak berpengaruh terhadap kualitas sampel simplisia temu mangga, selanjutnya perlu dilakukan pengamatan pengaruh suhu blansir terhadap kualitas simplisia temu mangga tersebut.</p><p> </p><p>Temu mangga (Curcuma mangga Val is a species of the family Zingiberaceae that have been commonly used by society as raw material in traditional medicine. Reports have shown that rhizome of C. mangga to be used as antioxidant, antitumor, antifungal, antibacterial and allergen. The rhizome inventory of mango rhizome as the raw material of herbal medicine or traditional medicine in the community is generally in the form of simplicia so it can be stored for a long time. Length of storage can affect the quality of the mango rhizome. Blanching is known as one of the stages in the process of preserving organic materials. The important function of blanching method, such as able to reduce water content, minimize microbial contamination. During the blanching process, the sample is given heat treatment to allow for dissolved extractive value while it is a description of the chemical content contained in simplicia. The aim of this study is the effectiveness of blanching treatment on the quality of simplicia, especially microbial contamination and the levels of extracts contained in certain shelf life of C. mangga simplicia. This study was conducted by selecting samples of C. mangga simplicia preparations, which were then treated with blanch time variations 1, 3 and 5 minutes, and testing the quality of simplicia including loss on drying, the number of microbial contamination, water soluble and alcohol extract. The results of the study showed that blanching treatment could effectively reduce the rate of microbial contamination to meet standards. Blanching has no effect on the level of water soluble extract, but it has a significant effect on the levels of soluble alcohols.</p>