Lipase activity of thermophilic bacteria from icelandic hot springs

1993 ◽  
Vol 15 (4) ◽  
pp. 361-366 ◽  
Author(s):  
Sj�fn Sigurg�slad�ttir ◽  
Malta Konr��sd�ttir ◽  
�sbj�rn J�nsson ◽  
Jakob K. Kristj�nsson ◽  
Einar Matthiasson
Keyword(s):  
Lipase Activity ◽  
Hot Springs ◽  
Thermophilic Bacteria

scholarly journals PRODUCTION OF INDUSTRIALLY IMPORTANT ENZYMES BY THERMOBACILLI ISOLATED FROM HOT SPRINGS OF INDIA

2017 ◽  
Vol 8 ◽  
pp. 19-28
Author(s):  
ASHISH DHYANI ◽  
RITU GURURANI ◽  
SAMY A. SELIM ◽  
PRIYANKA ADHIKARI ◽  
AVINASH SHARMA ◽  
...  
Keyword(s):  
Lipase Activity ◽  
Hot Springs ◽  
Thermophilic Bacteria ◽  
Bacterial Species ◽  
Maximum Activity ◽  
Enzyme Preparations ◽  
Industrial Sectors ◽  
Potential Applications ◽  
Maximum Stability ◽  
Ph Range

Enzymes from thermophilic bacteria have received great attention for their potential applications in various industrial sectors. The present study deals with the production of five thermozymes (amylase, lipase, xylanase, protease and cellulase) from 10 thermophilic bacterial species, originally isolated from two hot springs namely Soldhar and Ringigad in Uttarakhand Himalaya, India. The bacterial isolate GBPI_25 produced maximum amylase (1217.86 U/ml) at 45 °C and 5 pH, GBPI 3 produced maximum lipase (22.59 U/ml) at 65 °C and 9 pH, GBPI_25 produced maximum xylanase (98.07 U/ml) at45 °C and 9 pH, GBPI_35 produced maximum protease (16.66 U/ml) at 55 °C and 9 pH, and GBPI 4 produced maximum cellulose (108.68 U/ml) at 45 °C and 5 pH. Crude enzyme preparations showed thermal and pH activities at broad temperature and pH range between 10-100 °C and 3-11 pH, respectively, with different temperature and pH optima. Amylase, xylanase and cellulase showed maximum activity at 50 °C while lipase and protease showed higher activity at 40 and 60 °C, respectively. Enzyme activity at wide temperature range-cellulase and protease from 10-100 °C, amylase and xylanasefrom10-90 °C, and lipase activity from 10-80 °C were the remarkable records from this study. Similarly, pH range for amylase and lipase activity was recorded from 4-11, for xylanase from 3-9, and for protease and cellulase from 3-10. All the thermozymes showed maximum stability at 40 °C and pH 5 except cellulase that showed higher stability at40 °C and neutral pH.

Screening of xylanolytic thermophilic bacteria from some hot springs in Turkey

2011 ◽  
Vol 22 ◽  
pp. S88
Author(s):  
Kadriye İnan ◽  
Müslüm Tokgöz ◽  
Sabriye Çanakçi ◽  
Ali Osman Beldüz
Keyword(s):  
Hot Springs ◽  
Thermophilic Bacteria

Antimicrobial Activity and GC-MS Analysis of Bioactive Constituents of Thermophilic Bacteria Isolated from Saudi Hot Springs

2018 ◽  
Vol 44 (1) ◽  
pp. 75-85
Author(s):  
S. A. Alrumman ◽  
Y. S. Mostafa ◽  
Shekha T. S. Al-Qahtani ◽  
T. Sahlabji ◽  
T. H. Taha
Keyword(s):  
Antimicrobial Activity ◽  
Hot Springs ◽  
Thermophilic Bacteria ◽  
Bioactive Constituents ◽  
Ms Analysis

scholarly journals Short Communication: The emergence and rise of indigenous thermophilic bacteria exploration from hot springs in Indonesia

2020 ◽  
Vol 21 (11) ◽  
Author(s):  
Kenny Lischer ◽  
ANANDA BAGUS RICHKY DIGDAYA PUTRA ◽  
Brian Wirawan Guslianto ◽  
Forbes Avila ◽  
Sarah Grace Sitorus ◽  
...  
Keyword(s):  
High Temperature ◽  
16S Rrna ◽  
Whole Genome Sequencing ◽  
Genome Sequencing ◽  
Short Communication ◽  
Hot Springs ◽  
Thermophilic Bacteria ◽  
Whole Genome ◽  
Thermostable Enzymes ◽  
The Pacific

Abstract. Lischer K, Putra ABRD, Guslianto BW, Avilla F, Sitorus SG, Nugraha Y, Sarmoko. 2020. Short Communication: The emergence and rise of indigenous thermophilic bacteria exploration from hot springs in Indonesia. Biodiversitas 21: 5474-5481. Indonesia is an archipelagic country located in the pacific ring of fire, and is estimated to cause numerous hot springs spread across the country. In addition, small living microbes have been explored in these locations since 1985. These microbes possess the ability to survive in areas with high temperature (more than 40oC-90oC), and are therefore termed thermophiles. Hence, massive explorations have been conducted on Java island and other unexplored areas at Sumatra to Papua in New Guinea islands. Moreover, a total of 71 hot springs characterized by the presence of thermophilic bacteria have been explored in Indonesia. These investigations ensue with various approaches, including through conventional and microbiological, 16S rRNA, as well as whole-genome sequencing methods. In addition to species exploration, the application of thermophiles has become a topic of interest from 1999, especially based on thermostable enzymes with the capacity to maintain activity at high-temperature conditions. These include amylase, protease, lipase, xylanase, esterase, and cellulase as the most common isolated form, which indicates the existence of significant extractable potentials. Hence, there is a need for further research in terms of both exploration and application purposes.

Identification and characterization of thermophilic bacteria isolated from hot springs in Turkey

2009 ◽  
Vol 79 (3) ◽  
pp. 321-328 ◽  
Author(s):  
Ahmet Adiguzel ◽  
Hakan Ozkan ◽  
Ozlem Baris ◽  
Kadriye Inan ◽  
Medine Gulluce ◽  
...  
Keyword(s):  
Hot Springs ◽  
Thermophilic Bacteria ◽  
Identification And Characterization

scholarly journals Isolation and Characterization of Extremely Thermophilic Bacteria from Hot Springs

1972 ◽  
Vol 36 (13) ◽  
pp. 2357-2366 ◽  
Author(s):  
Takashi SAIKI ◽  
Ryohei KIMURA ◽  
Kei ARIMA
Keyword(s):  
Hot Springs ◽  
Thermophilic Bacteria ◽  
Isolation And Characterization
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