The coast of Southeast Indian and the tropical part of the Western Pacific is a habitat for the tropical sea grass Enhalus acoroides. In Ekas Bay, East Lombok, E. acoroides grows well in seashores, which is important to tropical marine ecosystem. Previous research reported the pharmacological activity of E. acoroides such as antioxidant and antibacterial. E. acoroides was tested to identify their secondary metabolites using phytochemical screening. The secondary metabolites were further characterized using thin layer chromatography with specific spray reagent. The phytochemical screening identified primary metabolites such as carbohydrates and proteins. On the other hand, the phytochemical screening also detected secondary metabolites such as alkaloid, phenolic, tannin, saponins, flavonoid, monoterpenes, and sesquiterpenes. The TLC profile with specific spray reagent confirmed the bioactive components such as phenolic, flavonoid, and terpenes in methanol extract of E. acoroides. These results had a significant impact on profiling the marine plant as a new drug candidate. The information of secondary metabolites from E. acoroides will contribute to further research in determination of antioxidant, and antibacterial activity of E. acoroides, as a promising marine drug candidate from Indonesia.

Community service activities carried out by students of Universitas Jenderal Achmad Yani were carried out on August 29, 2022, taking place in a medicinal plant garden, Faculty of Pharmacy, Universitas Jenderal Achmad Yani which was attended by UMKM Spice Nusantara Bandung participants. The socialization carried out was the presentation and delivery of post-harvest processing materials (wet sorting, washing, drying, and dry sorting) and the standardization of traditional raw materials. Conventional medicine is a form of treatment efforts in the community to support health which is currently being recommended by the government. Communities can use the toga as an economical and efficient measure to maintain body immunity because the community can obtain and use the toga quickly and simply to maintain family health. The postharvest process greatly determines the existence of active compounds that are efficacious for treatment. Incorrect postharvest management can change, reduce, or destroy the active substance of a plant into a substance that has no therapeutic effect and can even endanger health. The results of the participant's level of understanding were carried out post-test with the results of what is the purpose of post-harvest processing (100%), the sequence of post-harvest processing (80%), what is the general drying temperature (100%), a medicinal plant has good quality and efficacy then we need to know (80%), and what is the function of the washing process (90%) with the conclusion that socialization activities can significantly increase the knowledge of participants from MSMEs regarding planting, post-harvest processing, and the properties of medicinal plants significantly.

Bungur ( Lagerstroemia loudonii Teijsm. & Binn.) belongs to the Lytrhaceae that traditionally was used as antidiabetic, antiinflammatory, antihypertensive and diuretic. Other bungur plants such as Lagerstroemia speciosa have been known for the activity as alpha-glucosidase inhibitor. Based on chemotaxonomy, the distribution of compounds in one family or genus and its activity has similarities, then tested for the activity of alpha-glucosidase of Lagerstroemia loudonii Teijsm. & Binn. The leaves and fruits was extracted by reflux using 96% ethanol. The process of fractionation by liquid-liquid extraction. Testing of alpha-glucosidase inhibitor activity was performed in vitro using colorimetric method at 400.4 nm, acarbose used as standard inhibitor. The results of alpha-glucosidase inhibitory activity of leaves with IC50 showed the ethanol extracts, n-hexane, ethyl acetate and water fractions respectively 262.20 pg/ml; 97.16 pg/ml; 62.73 pg/ml; 145.30 pg/ml; and fruits with IC50 showed the ethanol extracts, n-hexane, ethyl acetate and water fractions respectively 1.50 pg/ml; 3.69 pg/ml; 37.38 pg/ml; 22.59 pg/ml. IC50 standard acarbose was 10.95 pg/ml. The results of this research from Lagerstroemia loudonii Teijsm. & Binn. leaves and fruits can be developed into herbal preparations to lower blood glucose levels.

<p align="center"><strong>Abstrak</strong></p><p>Perairan Indonesia merupakan habitat bagi berbagai spesies makro dan mikro alga. Selada laut <em>(Ulva lactuca)</em> adalah salah satu makroalga hijau yang secara empiris digunakan sebagai makanan oleh masyarakat Indonesia yang hidup dipesisir pantai. Pada perairan tawar, ganggang hijau (<em>Spirogyra porticalis</em>) merupakan mikroalga filamen yang berperan penting sebagai bioindikator dalam sistem akuatik. Penelitian ini bertujuan untuk mengetahui profil fitokimia dari selada laut dan ganggang hijau yang tumbuh di perairan Indonesia. Hasil pengujian kualitatif pada selada laut <em>(Ulva lactuca)</em>  menunjukkan kandungan metabolit primer  dan sekunder berturut-turut adalah karbohidrat, alkaloid, flavonoid, mono dan seskuiterpenoid. Sementara itu ganggang hijau (<em>Spirogyra porticalis</em>) mengandung karbohidrat, protein, alkaloid, flavonoid, fenolik, tannin, kuinon, mono dan seskuiterpenoid. Pola kromatogram selada laut <em>(Ulva lactuca) </em>dan  ganggang hijau (<em>Spirogyra porticalis)</em> mendeteksi aktivitas antioksidan yang dimiliki oleh senyawa- metabolit sekunder  seperti fenol, tannin, flavonoid, mono dan seskuiterpenoid yang memiliki variasi kepolaran dari semi hingga polar. Hasil uji pendahuluan aktivitas antioksidan menggunakan metode dinamolisis menunjukkan selada laut <em>(Ulva lactuca) </em>dan  ganggang hijau (<em>Spirogyra porticalis)</em> memiliki aktivitas antioksidan dan berpotensi dikembangkan sebagai obat, suplemen, eksipien farmasi dan makanan nutrisi.</p><p align="center"> </p><p>Kata kunci: selada laut <em>(Ulva lactuca),</em> ganggang hijau (<em>Spyrogyra porticalis</em>), antioksidan, bahari, Indonesia.</p><p> </p><p align="center"><strong>Abstract</strong></p><p><em>Indonesian waters are habitat for various macro and micro algae species. Sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em> is one of the green macroalgae that is empirically used as food by Indonesian people. In freshwater, green algae </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> is filament microalgae that play an important role as bioindicators in the aquatic system. The aim of this research was to profiling the chemical constituent from native Indonesian sources,</em><span style="text-decoration: underline;"> Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>  and</em> <span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em>. The results of  </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>  qualitative analysis showed the content of primary and secondary metabolites are carbohydrates, alkaloids, flavonoids, mono, and sesquiterpenoids, respectively. On the other hand, green algae </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> carbohydrates, proteins, alkaloids, flavonoids, phenolics, tannins, quinones, mono, and sesquiterpenoids, respectively. The chromatogram pattern of sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em> and  </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> showed the antioxidant activity caused by secondary metabolites such as phenol, tannin, flavonoids, mono and sesquiterpenoids which were various polarity. Preliminary test results of antioxidant activity with the dinamolysis method showed sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>  and</em> <em>and green algae </em><span style="text-decoration: underline;">Spirogyra</span> <span style="text-decoration: underline;">porticalis</span><em> have antioxidant activity. It potentially developed as drugs, supplements, pharmaceutical excipients and nutritional foods.</em><em></em></p><p><em> </em></p><p><em>Keywords</em>: <em>sea lettuce </em><span style="text-decoration: underline;">Ulva</span> <span style="text-decoration: underline;">lactuca</span><em>, green microalgae </em><span style="text-decoration: underline;">Spyrogyra</span> <span style="text-decoration: underline;">porticalis</span><em>, antioxidant, marine, Indonesia, </em></p>

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