scholarly journals Bioactivities of Halometabolites from Marine Actinobacteria

Biomolecules ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 225 ◽  
Author(s):  
Noer Kasanah ◽  
Triyanto Triyanto
Keyword(s):  
Marine Environment ◽  
High Throughput ◽  
High Throughput Screening ◽  
Structure Elucidation ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Marine Actinobacteria ◽  
Commercially Important ◽  
Physical And Chemical ◽  
And Chemical Properties

Natural halogenated compounds (halometabolites) are produced mainly by marine organisms, including marine Actinobacteria. Many commercially important compounds for pharmaceuticals contain halogen, and the halogen is responsible for the physical and chemical properties as well as bioactivities and toxicities. In the exploration of marine environment that is supported by advanced structure elucidation, varied panel bioassays and high-throughput screening have accelerated number of halometabolites isolated from marine Actinobacteria to date. The metabolites exhibited unique structures and promising bioactivities. This review focuses on the chemodiversity and bioactivities of marine halometabolites from marine Actinobacteria reported in the last 15 years (2003–2018).

Study on the Risk Analysis and Emergency Measures to the PX Projects of Dalian Dagushan which Impact on the Marine Environment

2014 ◽  
Vol 675-677 ◽  
pp. 325-328
Author(s):  
Jun Zhang ◽  
Jian Guo Lin ◽  
Han Zhang
Keyword(s):  
Risk Analysis ◽  
Marine Environment ◽  
Chemical Properties ◽  
Industrial Park ◽  
Physical And Chemical Properties ◽  
Environmental Assessments ◽  
Chemical Industrial Park ◽  
Physical And Chemical ◽  
Emergency Measures ◽  
And Chemical Properties

By investigating and analyzing PX demand in recent years and the distribution of PX projects in Dagushan chemical industrial park, combining its physical and chemical properties and marine environment near Dalian Dagushan, aim to make environmental assessments on the damage caused by PX to the marine environment and propose appropriate emergency measures.

How Commercially important Tree Gum Exudates can be differentiated

2020 ◽  
Vol 27 (4) ◽  
pp. 191-196
Author(s):  
Satish Sinha ◽  
Rajesh Gunaga ◽  
Timur Ahlawat ◽  
Mahantesh Sankanur ◽  
Abhishek Mehta ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Gum Arabic ◽  
Physical And Chemical Properties ◽  
Arabic Gum ◽  
Gum Tragacanth ◽  
Gum Karaya ◽  
Gum Ghatti ◽  
Commercially Important ◽  
Physical And Chemical ◽  
And Chemical Properties

The commercially important tree gum exudates produced in India are gum Arabic, gum ghatti and gum karaya or Indian gum tragacanth. These gums, available in the market, are often adulterated by many other natural gums which may be inferior in quality. Therefore, identification of these gums is very essential to minimize the adulteration by comparing their physical and chemical properties. The study shows that among these properties, solubility, viscosity and colour can be used along with confirmatory chemical tests for differentiating commercial gums. The paper highlights the details of physical properties of the gums and chemical tests to differentiate between these gums.

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

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