cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota malang,
Jawa timur
INDONESIA
Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences
Published by Universitas Brawijaya
ISSN : 20875517     EISSN : 25274376     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
The Journal of Tropical Life Science (JTLS) provides publication of full-length papers, short communication and review articles describing of new finding or theory in living system, cells and molecular level in tropical life science and related areas. The journal publishes articles that report novel findings of wide Tropical Life system phenomenon in the areas of biodiversity, agriculture, fisheries, health, husbandry, forestry and environmental technology. JTLS has 1 volume with 3 issues per year.
Arjuna Subject : -
Articles 32 Documents
 1   2   3   4 
Search results for , issue "Vol. 14 No. 3 (2024)" : 32 Documents clear
Phytochemical Profile and Antioxidant Activity of Hydro-distillated from Gynostemma pentaphyllum Makino with Hydrogen Gas: Antioxidant activity of hydrogen-rich G. pentaphyllum Makino distillate Kim, Min Young
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.19

Abstract

Hydrogen-rich Gynostemma pentaphyllum Makino distillate (HRGD) is made by distilling G. pentaphyllum Makino with hydrogen gas to produce the final product. The study evaluated the total phenolic and flavonoid contents of HRGD, as well as its antioxidant properties, including scavenging activities for various radicals such as 2,2-diphenyl-1-picryl-hydrazyl (DPPH), superoxide anion (O2-), hydrogen peroxide radical (H2O2), nitric oxide radical (NO•) and 2,2´-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+), along with a ferrous ion chelating assay. Total phenolic and flavonoid contents were 42330 mg gallic acid and 36300 mg rutin equivalents/100 g, respectively. HRGD exhibited significant antioxidant and free radical scavenging activities in vitro, which were dose-dependent and superior to those of standard antioxidants. HRGD exhibited higher scavenging activities for DPPH, O2-, H2O2, NO• and ABTS•+ radicals, as well as ferrous ion chelating activity than standard antioxidants (p < 0.05). The results showed that HRGD could be an economical and readily accessible source of natural antioxidants and a possible food and pharmaceutical supplement.
Authentication of Barbonymus spp. From Lake Singkarak Using DNA Barcoding: Authentication of Barbonymus spp. From Lake Singkarak using DNA Barcoding Salis, Viola Mutiara; Roesma, Dewi Imelda; Tjong, Djong Hon; Syaifullah; Aadrean; Dahelmi
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.15

Abstract

The local community distinguishes between Barbonymus belinka (Balingka) and Barbonymus schwanefeldii (Kapiek) in Lake Singkarak based on size due to the morphological similarities between the two species. From previous reports, B. belinka (Balingka) is a fish endemic to Lake Singkarak, West Sumatra, while B. schwanefeldii has a wider distribution, including Sumatra, Kalimantan, and Java. Consequently, molecular identification is necessary to discern between the species and to understand the DNA barcode characteristics of fish belonging to the genus Barbonymus in Lake Singkarak. One molecular technique utilized for species identification is DNA barcoding, which focuses on the COI (Cytochrome Oxidase Subunit I) gene. Liver tissue samples from Balingka and Kapiek fish from Lake Singkarak were used in the study. Based on 585 bp of COI gene sequences and 30 comparison sequences from BOLD system and GenBank NCBI, seven samples from Lake Singkarak show a genetic distance of 0–1.2% from B. schwanefeldii populations elsewhere, with 15 differing nucleotide bases. Moreover, samples from Lake Singkarak show a genetic distance of 7.7–8.2% from B. belinka in the BOLD system from Aceh, with 42 differing nucleotide bases. Furthermore, two specific bases are present in B. schwanefeldii from Lake Singkarak. Based on the results of this research, it is known that all samples from Lake Singkarak, including Balingka and Kapiek, belong to the same species, namely B. schwanefeldii.

Page 4 of 4 | Total Record : 32

 1   2   3   4 

Filter by Year

2024 2024


Reset
Filter By Issues
All Issue Vol. 15 No. 3 Vol. 15 No. 1 (2025) Vol. 15 No. 2 Vol. 14 No. 3 (2024): In Press Vol. 14 No. 3 (2024) Vol. 14 No. 2 (2024) Vol. 14 No. 1 (2024) Vol. 13 No. 3 (2023) Vol. 13 No. 2 (2023) Vol. 13 No. 1 (2023) Vol. 12 No. 3 (2022) Vol. 12 No. 2 (2022) Vol. 12 No. 1 (2022) Vol 11, No 3 (2021) Vol. 11 No. 3 (2021) Vol 11, No 2 (2021) Vol. 11 No. 2 (2021) Vol. 11 No. 1 (2021) Vol 11, No 1 (2021) Vol. 10 No. 3 (2020) Vol 10, No 3 (2020) Vol. 10 No. 2 (2020) Vol 10, No 2 (2020) Vol 10, No 1 (2020) Vol. 10 No. 1 (2020) Vol 9, No 3 (2019) Vol. 9 No. 3 (2019) Vol. 9 No. 2 (2019) Vol 9, No 2 (2019) Vol. 9 No. 1 (2019) Vol 9, No 1 (2019) Vol 8, No 3 (2018) Vol. 8 No. 3 (2018) Vol 8, No 2 (2018) Vol. 8 No. 2 (2018) Vol 8, No 1 (2018) Vol. 8 No. 1 (2018) Vol 7, No 3 (2017) Vol. 7 No. 3 (2017) Vol 7, No 2 (2017) Vol. 7 No. 2 (2017) Vol. 7 No. 1 (2017) Vol 7, No 1 (2017) Vol 6, No 3 (2016) Vol. 6 No. 3 (2016) Vol 6, No 2 (2016) Vol. 6 No. 2 (2016) Vol. 6 No. 1 (2016) Vol 6, No 1 (2016) Vol 5, No 3 (2015) Vol. 5 No. 3 (2015) Vol. 5 No. 2 (2015) Vol 5, No 2 (2015) Vol. 5 No. 1 (2015) Vol 5, No 1 (2015) Vol 4, No 3 (2014) Vol. 4 No. 3 (2014) Vol. 4 No. 2 (2014) Vol 4, No 2 (2014) Vol 4, No 1 (2014) Vol. 4 No. 1 (2014) Vol 3, No 3 (2013) Vol. 3 No. 3 (2013) Vol. 3 No. 2 (2013) Vol 3, No 2 (2013) Vol 3, No 1 (2013) Vol. 3 No. 1 (2013) Vol. 2 No. 3 (2012) Vol 2, No 3 (2012) Vol. 2 No. 2 (2012) Vol 2, No 2 (2012) Vol 2, No 1 (2012) Vol. 2 No. 1 (2012) Vol 1, No 2 (2011) Vol. 1 No. 2 (2011) Vol. 1 No. 1 (2010) Vol 1, No 1 (2010) More Issue