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Sains Natural: Journal of Biology and Chemistry
Published by Universitas Nusa Bangsa
ISSN : 20863446     EISSN : 2621508X     DOI : https://doi.org/10.31938/jsn
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry
Jurnal Sains Natural is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication with the objectives to explore the knowledge about natural sciences. This journal incorporates not only all branches of chemistry and biology, but also sub-disciplines like Biochemistry, Polymer, Agricultural chemistry, Environmental chemistry, etc.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol. 11 No. 2 (2021): Sains Natural" : 6 Documents clear
Opportunity and benefits of functional food from the sea: A Rewiew Paulus Damar Bayu Murti; Bambang Dwiloka; Ocky Karna Radjasa; James Ngginak
JURNAL SAINS NATURAL Vol. 11 No. 2 (2021): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (927.221 KB) | DOI: 10.31938/jsn.v11i2.297

Abstract

Functional food has been believed to prevent and reduce the possibility of chronic diseases such as obesity, diabetes, coronary heart disease, hypertension and cancer. The sea offers resources that can be used as a source of functional food. Research on bioactive compounds from marine life has been carried out, which have biological activity. For example, omega-3 consist of two types of acids, namely docosahexaenoic acid (DHA) and eicosapentanoic acid (EPA), which is contained in fish. Carotenoids and xanthophylls are abundant in macroalgae. Likewise with phenolic compounds and polysaccharides derived from algae. The protein hydrolysate from fish waste which is used as an alternative product has biological activity. Chitin and chitosan were extracted from crustacean shells and marine mollusk. Referring to the diversity of compound bioactivity from marine resources, this review emphasizes more on the potential of functional food ingredients owned by marine resources and their opportunities and benefits..Keywords: Functional food, Marine, Bioactive compounds, Chronic diseases, Biological activityABSTRAKPeluang dan manfaat pangan fungsional dari laut: Telaah PustakPangan fungsional telah dipercayai dapat mencegah dan menurunkan kemungkinan penyakit kronis seperti obesitas, diabetes, jantung koroner, hipertensi dan kanker. Laut menawarkan sumberdaya yang dapat dimanfaatkan sebagai sumber bahan pangan fungsional. Penelitian mengenai senyawa bioaktif dari biota laut sudah banyak dilakukan yang memiliki aktivitas biologis.  Sebagai contoh, Omega-3 terdiri atas dua jenis asam yaitu asam dokosaheksaenoat (DHA) dan asam eikosapentanoat (EPA) yang terkandung pada ikan. Karotenoid dan xantofil yang banyak terkandung pada makroalga. Begitu pun dengan senyawa fenolik dan polisakarida yang berasal dari alga. Hidrolisat protein dari limbah ikan yang dimanfaatkan sebagai produk alternatif memiliki aktivitas biologis. Kitin dan kitosan yang diekstrak dari limbah cangkang krustasea dan moluska laut. Mengacu pada keragaman bioaktivitas senyawa dari sumberdaya kelautan, review ini lebih menekankan pada potensi bahan pangan fungsional yang dimiliki oleh sumberdaya kelautan serta peluang dan manfaatnya.Kata kunci : Pangan fungsional, Laut, Senyawa bioaktif, Penyakit kronis, Aktivitas biiologi
Antioxidant activity from ethanol extract of red seaweed (Galaxaura rugosa) Bhayu Gita Bhernama; Witri Maulidy Ayu; Cut Nuzlia
JURNAL SAINS NATURAL Vol. 11 No. 2 (2021): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (955.518 KB) | DOI: 10.31938/jsn.v11i2.309

Abstract

Antioxidants are compounds that can delay, reduce, slow down or inhibit oxidation reactions from free radical reactions. Antioxidants donate electrons to unstable free radicals so that these free radicals can be neutralized to not interfere with the body's metabolic processes. Red seaweed Galaxaura rugosa has potential as an antioxidant. The study aimed to determine the antioxidant activity of the ethanol extract of red seaweed Galaxaura rugosa against DPPH free radicals based on the IC50 value. Phytochemical testing and determination of antioxidant activity were carried out using the DPPH method (2,2-diphenyl-1-picrylhydrazyl), which was carried out quantitatively using a UV-Vis spectrophotometer. The results of the phytochemical screening of red seaweed ethanol extract contained alkaloids, flavonoids, saponins, steroids, and polyphenols and the IC50 value of red seaweed ethanol extract was 4.59 ppm, while the positive control for Vitamin C was 6.64 ppm. It was concluded that the ethanolic extract of red seaweed Galaxaura rugosa in the South Aceh District had high antioxidant potential, as evidenced by the small IC50 value of <50 µg/mL.Keywords: Antioxidants, Galauxara rugosa, phytochemicals, DPPH  ABSTRAKAktivitas antioksidan dari ekstrak etanol rumput laut merah Galaxaura rugosa Antioksidan merupakan senyawa yang mampu menunda, memperkecil, memperlambat atau menghambat reaksi oksidasi dari reaksi radikal bebas. Antioksidan menyumbangkan elektron kepada radikal bebas yang tidak stabil sehingga radikal bebas ini dapat dinetralkan agar tidak mengganggu jalannya proses metabolisme tubuh. Rumput laut merah Galaxaura rugosa berpotensi sebagai antioksidan. Penelitian ini bertujuan untuk menentukan aktivitas antioksidan ekstrak etanol rumput laut merah Galaxaura rugosa terhadap radikal bebas DPPH berdasarkan nilai IC50. Pada penelitian ini dilakukan pengujian fitokimia dan penentuan aktivitas antioksidan menggunakan metode DPPH (2,2-difenil-1-pikrilhidrazil) yang dilakukan secara kuantitatif menggunakan spektrofotometer UV-Vis. Hasil dari skrining fitokimia ekstrak etanol rumput laut merah mengandung senyawa alkaloid, flavonoid, saponin, steroid dan polifenol serta nilai IC50 ekstrak etanol rumput laut merah sebesar 4,59 ppm sedangkan kontrol positif Vitamin C sebesar 6,64 ppm. Ekstrak etanol rumput laut merah Galaxaura rugosa di Kabupaten Aceh Selatan memiliki potensi antioksidan yang tinggi. dibuktikan dengan nilai IC50 yang yang kecil yaitu < 50 µg/mL.Kata kunci: Antioksidan, Galauxara rugosa, Fitokimia, DPPH
Isolation of β-caroten from Brown Tiger Shrimp shell waste (Penaeus esculentus) and its antioxidant activity using ABTS (2,2-azinobis- [3-ethylbenzothiazoline-6-sulfonicacid] method Hendri Faisal; Sri Handayani; Miranda Alvionita; Mayang Sari
JURNAL SAINS NATURAL Vol. 11 No. 2 (2021): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v11i2.299

Abstract

BrownTiger Shrimp (Penaeus esculentus) is a fishery export commodity that has high potential and categorize major commercial value.The waste in the form of shell produced from the shrimp industry has not been used properly and efficiently. In fact, most of it is waste that also pollutes the environment.Shrimp shell contained a lot of carotenoid pigments which are antioxidants, one of which is β-carotene.The aim of the study was to determine the amount of β-carotene and antioxidant activity in the chloroform extract of BrownTiger shrimp shell (Penaeus esculentus). The study used maceration method with chloroform to obtain β-carotene extract then the total content was measured using UV-Vis spectrophotometry.Testing the antioxidant activity of β-carotene and chloroform β-carotene extract of Brown Tiger shrimp shell (Penaeus esculentus) was carried out through free radical scavenging using the ABTS method (2,2-azinobis- [3-ethylbenzothiazoline-6-sulfonicacid]).Chloroform β-carotene extract of Brown Tiger shrimp shell (Penaeus esculentus) contained β-carotene 618.2 µg / g of extract (0.06182% per gram of extract), and had weak antioxidant activity with IC50 value of 396.660 mg/L.β-carotene as a comparison compound has an IC50 value of 114.838 with moderate antioxidant activity category. The conclusion of this study was the chloroform β-carotene extract of Brown Tiger shrimp skin (Penaeus esculentus) contained β-carotene compounds and had weak antioxidant activity index.Keywords: β-carotene, shrimp shell, Penaeus esculentus, antioxidant, ABTSABSTRAKIsolasi β–karoten limbah kulit udang tiger coklat (Penaeus Esculentus) dan aktivitas antioksidannya dengan metode ABTS(2,2-Azinobis- [3-Ethylbenzothiazoline-6-Sulfonicacid])Udang Tigercoklat (Penaeus esculentus) merupakan komoditas ekspor perikanan yang memiliki potensi tinggi dan dikategorikan sebagai udang yang memiliki nilai komersial utama. Limbah berupa kulit yang dihasilkan dari industri udang belum dimanfaatkan dengan baik dan efisien, bahkan sebagian besar merupakan limbah yang mencemari lingkungan. Kulit udang banyak mengandung pigmen karotenoid yang merupakan antioksidan, salah satunya adalah β-karoten. Tujuan dari penelitian ini adalah untuk mengetahui kadarβ-karoten dan aktivitas antioksidan ekstrak kloroform kulit udang Tigercoklat dengan menggunakan β-karoten sebagai pembanding. Penelitian ini menggunakan metode ekstraksi maserasi dengan kloroform untuk mendapatkan ekstrak kloroformβ-karoten dan mengukur kadarnya menggunakan spektrofotometri UV-Vis. Pengujian aktivitas antioksidan β-karoten dan ekstrak kloroformβ-karoten kulit udang Tigercoklat dilakukan melalui pemulungan radikal bebas menggunakan metode ABTS (2,2-azinobis-[3-ethylbenzothiazoline-6-sulfonicacid]). Ekstrak kloroform β-karoten kulit udang Tigercoklat mengandung β-karoten sebanyak 618,2 µg / g ekstrak (0,06182% per gram ekstrak), dan memiliki aktivitas antioksidan lemah dengan nilai IC50 396,660 mg/L. β-karoten sebagai senyawa pembanding memiliki nilai IC50 sebesar 114,838 ppm dengan kategori sedang. Kesimpulan dari penelitian ini adalah ekstrak kloroform β-karotenkulit udang Tigercoklat mengandung senyawa β-karoten dan memiliki aktivitas antioksidan dalam kategori lemah.Kata kunci: β-karoten; kulit udang;, Penaeus esculentus; antioksidan; ABTS
Inventory of butterfly species (Lepidoptera: Papilionoidea) in several habitat types in University of Bangka Belitung Elfrida Natalia Manurung; Budi Afriyansyah; Hari Sutrisno
JURNAL SAINS NATURAL Vol. 11 No. 2 (2021): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1027.108 KB) | DOI: 10.31938/jsn.v11i2.305

Abstract

Butterflies (Papilionoidea) are Lepidoptera which have various ecological roles in maintaining the balance of the ecosystem and can be found in various types of habitats ranging from forest to urban areas. This research was conducted from March to June 2020 in four types of habitat, namely, rubber gardens, secondary forest, agroecosystem hatchery, and swamp forest using the Pollard transect method and the sweeping net technique for five days in each habitat type. The relationships between environmental factors and the number of species and individuals were analyzed with the Pearson correlation test. The number of individual butterflies obtained was 913 butterflies of 27 species from five families (Nymphalidae, Pieridae, Lycaenidae, Hesperidae, and Riodinidae). The highest diversity was found in rubber gardens (19 species) followed by secondary forest (17 species), swamp forest (12 species) and agroecosystem hatchery (10 species). The highest species diversity index was found in swamp forests, while the lowest was in the agroecosystem hatchery habitat. The types of butterflies found in all habitats are Eurema sari, Mycalesis horsfieldi and M. mineus. The most abundant butterfly family is Nymphalidae. The Pearson correlation test analysis results showed a relationship between environmental factors and the number of species and individuals found.Keywords: Diversity, butterflies, Papilionoidea, habitat ABSTRAKInventarisasi jenis kupu-kupu (Lepidoptera: Papilionoidea) di beberapa tipe habitat di Universitas Bangka Belitung Kupu-kupu (Papilionoidea) merupakan Lepidoptera yang memiliki berbagai peran ekologis dalam menjaga keseimbangan ekosistem serta dapat ditemukan di berbagai macam tipe habitat mulai dari kawasan hutan hingga perkotaan. Penelitian ini dilakukan pada bulan Maret sampai Juni 2020 di empat tipe habitat yaitu, kebun karet, hutan sekunder, hatchery agroekosistem, dan hutan rawa dengan menggunakan metode transek Pollard dan teknik sweeping net selama lima hari di masing-masing tipe habitat. Hubungan faktor lingkungan dengan jumlah spesies dan jumlah individu dianalisis dengan uji korelasi Pearson. Jumlah individu kupu-kupu yang diperoleh sebanyak 913 ekor yang terdiri dari 27 spesies yang berasal dari lima famili (Nymphalidae, Pieridae, Lycaenidae, Hesperidae, dan Riodinidae). Keanekargaman tertinggi didapatkan di habitat kebun karet (19 spesies) selanjutnya diikuti hutan sekunder (17 spesies), hutan rawa (12 spesies) dan hatchery agroekosistem (10 spesies). Indeks keanekaragaman jenis paling tinggi ditemukan di hutan rawa, sedangkan yang paling rendah pada habitat hatchery agroekosistem. Jenis kupu-kupu yang ditemukan di seluruh habitat  yaitu Eurema sari, Mycalesis horsfieldi dan M. mineus. Famili kupu-kupu yang paling melimpah Nymphalidae. Hasil analisis uji kolerasi pearson, menunjukkan adanya hubungan antara faktor lingkungan dengan jumlah spesies dan individu yang ditemukan.Kata kunci: keanekaragaman, kupu-kupu, Papilionoidea, habitat
Screening and morphological observations of endophytic mold origin of pennywort (Centella asiatica (L.) Urban) as extracellular enzyme producer Muhamad Aditya Hidayah; Retno Aliyatul Fikroh
JURNAL SAINS NATURAL Vol. 11 No. 2 (2021): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1255.708 KB) | DOI: 10.31938/jsn.v11i2.304

Abstract

Pennywort is a biological plant that is included in the medicinal plant species. The analysis was carried out to obtain information and to find out that endophytic molds from pennywort (Centella asiatica (L.) Urban) can produce extracellular enzymes (amylase, cellulase, pectinase, protease, glucanase, and laccase). Based on the analysis that has been carried out, several conclusions are obtained, endophytic fungi from pennywort with isolate codes MB 20, MM 1, MM 6, MM 8, and MM 16 capable of producing extracellular amylase enzymes, endophytic fungi from pennywort with isolate codes MM 1, MM 12, MM 16, MM 18, MM 19, MM 20 and MM 21 were able to produce extracellular cellulase enzymes, endophytic fungi from pennywort with isolate codes MB 1, MB 3, MB 4, MB 6, MM 1, MM 9, MM 11, MM 13, MM 14, MM16, MM 19, MM 20 and MM 21 were able to produce extracellular glucanase enzymes, endophytic mold isolates from pennywort were proven to be unable to produce extracellular enzymes laccase, pectinase, and protease, and endophytic molds from pennywort with isolate codes MB 1, MB 20, MM 14 and the MM 16 is capable of producing siderophores.Keywords: Centella asiatica (L.) Urban, extracellular enzymes, endophytic typite, isolatesABSTRAKSkrining pengamatan morfologi kapang endofit asal tanaman pegagan (Centella asiatica (L.) Urban) sebagai penghasil enzim ekstraselulerTanaman pegagan merupakan tanaman hayati yang termasuk dalam jenis tanaman obat. Analisis dilakukan untuk mendapatkan informasi dan mengetahui bahwa kapang endofit asal tanaman pegagan (Centella asiatica (L.) Urban) dapat menghasilkan enzim ekstraseluler (Amilase, selulase, pektinase, protease, glukanase, dan lakase). Berdasarkan analisis yang telah dilakukan di peroleh beberapa kesimpulan, diantanya. yaitu kapang endofit asal tanaman pegagan dengan kode isolat MB 20, MM 1, MM 6, MM 8 dan MM 16 mampu menghasilkan enzim amilase ekstraseluler, kapang endofit asal tanaman pegagan dengan kode isolat MM 1, MM 12, MM 16, MM 18, MM 19, MM 20 dan MM 21 mampu menghasilkan enzim selulase ekstraseluler, kapang endofit asal tanaman pegagan dengan kode isolat MB 1, MB 3, MB 4, MB 6, MM 1, MM 9, MM 11, MM 13, MM 14, MM16, MM 19, MM 20 dan MM 21 mampu menghasilkan enzim glukanase ekstraseluler, isolat kapang endofit asal tanaman pegagan terbukti tidak mampu menghasilkan enzim ekstraseluler lakase, pektinase dan protease, dan kapang endofit asal tanaman pegagan dengan kode isolat MB 1, MB 20, MM 14 dan MM 16 mampu menghasilkan siderofor.Kata Kunci: Centella asiatica (L.) Urban, enzim ekstraseluler, kapang endofit,  isolat 
Diversity of herpetofauna and mammals on reclamation land PT. Refined Bangka Tin Bangka Ratna Sari Hasibuan; Ken Dara Cita; Suwandi Raharjo; Agus Seftian Pracahyo; Fari Indarto; Tanya Zurmie
JURNAL SAINS NATURAL Vol. 11 No. 2 (2021): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1330.275 KB) | DOI: 10.31938/jsn.v11i2.296

Abstract

The success indicators of land reclamation can be seen in the presence of plants and animals. The more types of plants and animals that can live and reproduce, the better the condition of the land ecosystem. One of the indicators is the presence of herpetofauna and mammals, so this study aims to determine the diversity of wild animals consisting of herpetofauna, in this case, are reptiles and amphibians, and to determine the diversity of mammals in the area of PT. Refined Bangka Tin (PT. RBT). The research method was the Visual Encounter Survey (VES) for collecting herpetofauna data and the Path Transect method for collecting data on mammals. The results showed that seven species of reptiles were found with a diversity of 1.51, while there were three types of amphibians with a diversity of 1.04. The diversity of reptiles and amphibians based on the Shannon-Wiener diversity index is moderate. There are four species of mammals with a diversity of 1.12 based on the Shannon-Wiener diversity index value that the diversity of mammals is moderate.Keywords: herpetofauna, diversity, reclaimed land, mammalsKeanekaragaman herpetofauna dan mamalia pada lahan reklamasi  PT. Refined Bangka Tin, Bangka ABSTRAK Suatu perusahaan dikatakan berhasil mengelola lahan reklamasinya ditandai dengan adanya flora dan fauna. Semakin tinggi keanekaragaman flora dan fauna pada lahan reklamasi maka semakin baik keadaan ekosistem pada lahan reklamasi tersebut.    Salah satu fauna yang terdapat pada lahan reklamasi adalah herpetofauna dan mamalia, sehingga tujuan dari penelitian ini adalah untuk mengetahui keanekaragaman satwa liar yang terdiri dari herpetofauna dalam hal ini adalah reptil dan amfibi serta untuk mengetahui keanekaragaman mamalia di kawasan PT. Refined Bangka Tin (PT. RBT). Metode penelitian adalah Visual Encounter Survey (VES) untuk pengambilan data herpetofauna dan metode Transek Jalur untuk pengambilan data mamalia.  Hasil penelitian adalah satwa reptil ditemukan sebanyak 7 jenis dengan keanekaragaman 1,51, sedangkan amfibi ditemukan sebanyak 3 jenis dengan keanekaragaman sebesar 1,04.  Keanekaragaman reptil dan amfibi yang berdasar pada indeks keanekaragaman Shannon-Wiener adalah sedang.  Satwa mamalia ditemukan sebanyak 4 jenis dengan keanekaragaman sebesar 1,12 termasuk sedang berdasar nilai indeks keanekaragaman Shannon-Wiener.Kata kunci : herpetofauna, keanekaragaman, lahan reklamasi, mamalia

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