scholarly journals A Review on Eco-Friendly Green Biolubricants from Renewable and Sustainable Plant Oil Sources

2021 ◽  
Vol 11 (5) ◽  
pp. 13303-13327
Keyword(s):  
Chemical Structure ◽  
Raw Materials ◽  
Public Awareness ◽  
Toxicity Testing ◽  
Published Data ◽  
Plant Oil ◽  
Base Oil ◽  
Oilseed Crops ◽  
Metal Type ◽  
Environmentally Preferable

The seed oils of domesticated oilseed crops are major agricultural commodities used primarily for nutritional applications, but in recent years, there has been increasing use of these oils to produce biofuels and chemical feedstocks. This is being driven in part by the rapidly rising costs of petroleum, increased concern about the environmental impact of using fossil oil, and the need to develop renewable domestic sources of fuel and industrial raw materials. Biolubricants are gaining popularity and acceptance globally due to their sustainable, non-toxic, and environmentally friendly properties. Besides that, they are also derived from renewable plant-based oils. The chemical structure of the base oil of the biolubricant is the key determinant of its biodegradability. Many factors like humidity, pressure, metal type, air, and temperature change the chemical composition of base oils used in biolubricants. In other words, biodegradability hinges on how the chemical structure of the base oil changes during service. National and international labeling programs have been developed to minimize confusion in the marketplace, increase public awareness, and create thoughtfulness for environmentally preferable products. The labeling programs can aid in removing uncertainty in buying environmentally preferable products. This review highlights the recently published data and works of literature related to the development of green biolubricants, biolubricant advantages/disadvantages, chemical modification reactions, biolubricants worldwide eco-labeling, biodegradability, and toxicity testing methods.

Phamacognostical and Pharmaceutical Evaluation of Chandrashakaladi Vataka - A herbal formulation

2016 ◽  
Vol 1 (3) ◽  
Author(s):  
Dr. Akash S Changole ◽  
Mandip Goyal ◽  
Harish CR
Keyword(s):  
Classical Method ◽  
Raw Materials ◽  
Herbal Medicines ◽  
Vital Role ◽  
Published Data ◽  
Herbal Formulation ◽  
Physico Chemical ◽  
Good Manufacturing Practices ◽  
Solvent Systems

Background: Quality control and the standardization of herbal medicines involve steps like standard source and quality of raw materials, good manufacturing practices and adequate analytical screening. These practices play a vital role in guaranting the quality and stability of herbal preparations. Chandrashakaladi Vataka is an Ayurvedic herbal formulation mentioned to be beneficial in Kushtha. Till date no published data is available on its analytical profile. Aim: To develop the Pharmacognostical and Phyto-chemical profile of Chandrashakaladi Vataka. Material and Methods: Chandrashakaladi Vataka was prepared as per classical method and analytical findings were recorded. Samples were subjected to organoleptic analysis, physico-chemical analysis and HPTLC examination by optimizing the solvent systems. Results and Conclusions: Pharmacognostical profile of Chandrashakaladi Vataka was established. Loss on drying, Ash value, Acid insoluble extract, Methanol soluble extract, Chandrashakaladi Vataka was found within prescribed limits. HPTLC profile of Chandrashakaladi Vataka revealed 12 spots at 254 nm and 13 spots at 366 nm.

Experimental Study on the Tribological Characteristics of Nanometer WS2 Lubricating Oil Additive Based on Engine Oil

2011 ◽  
Vol 328-330 ◽  
pp. 203-208 ◽  
Author(s):  
Cheng Bin Chen ◽  
Da Heng Mao ◽  
Chen Shi ◽  
Yang Liu
Keyword(s):  
Raw Materials ◽  
Viscosity Index ◽  
Engine Oil ◽  
Lubricating Oil ◽  
Contrast Study ◽  
Base Oil ◽  
Grinding Conditions ◽  
Lubricating Oil Additive ◽  
Great Wall ◽  
Better Than

Nano-WS2(tungsten disulfide nanoparticles)lubricating oil additive, prepared by the nanometer WS2particulates and semi-synthetic engine base oil as raw materials, was added into Great Wall engine oil with different mass ratio. With a contrast study on these oil samples, the results show that it can improve the extreme pressure, antiwear and viscosity-temperature properties of the engine oil effectively by adding a certain amount of nano-WS2additive, and the optimal concentration is 2wt%. The oil film strength, sintering load and viscosity index of this lubricating oil is respectively 1.35 times, 1.58 times and 1.05 times as that of Great Wall engine oil. In addition, when tested under the grinding conditions of 392 N, 1450 r /min and 30 min, the diameter of worn spot reduces 0.018mm, and the average friction coefficients of friction pairs decrease 16.3%, both of which are lubricated by the oil containing nano-WS2additive. Meanwhile, the experiments testify that the tribological and viscosity-temperature properties of the nano-WS2additive are better than that of the Henkel MoS2additive.

scholarly journals Zebrafish as an in vivo model for sustainable chemical design

2016 ◽  
Vol 18 (24) ◽  
pp. 6410-6430 ◽  
Author(s):  
Pamela D. Noyes ◽  
Gloria R. Garcia ◽  
Robert L. Tanguay
Keyword(s):  
Public Awareness ◽  
Toxicity Testing ◽  
In Vivo Model ◽  
Chemical Design ◽  
The Many ◽  
Persistent Contaminants

Heightened public awareness about the many thousands of chemicals in use and present as persistent contaminants in the environment has increased the demand for safer chemicals and more rigorous toxicity testing.

Geoethics education: From theory to practice – a case study

2020 ◽  
Author(s):  
Pimnutcha Promduangsri ◽  
David Crookall
Keyword(s):  
Water Policy ◽  
Energy Use ◽  
Raw Materials ◽  
Public Awareness ◽  
Biodiversity Loss ◽  
Earth Systems ◽  
Awareness Campaigns ◽  
Theory To Practice ◽  
Wide Range

<p><strong>Geoethics education:  From theory to practice – a case study</strong></p><p>Pimnutcha Promduangsri (1, 2) and David Crookall (1)</p><p>(1) Université Côte d’Azur, Nice, France;  (2) Méditerranée 2000, Cannes, France.</p><p>The planet Earth, and thus humanity, currently face such monumental geo-problems that geoethical behaviour by all citizens is a real imperative.  The problems are well known: global warming and climate change, pollution, sea-level rise, deforestation, ocean acidification, biodiversity loss and so on.  This situation requires that all citizens learn to behave in a geoethical fashion and in harmony with Earth’s nature.  This in turn necessitates deployment on a massive scale of geoethical education, or what we call geo-edu-ethics – ‘edu’ is sandwiched between ‘geo’ and ‘ethics’.  This is meant to suggest that in order to bring together ‘geo’ and ‘ethics’, we need ‘edu’.  On another level, we also argue that it is manifestly and axiomatically unethical not to provide necessary geoethical knowledge in schools, universities and other training, in addition (and related) to the education already being dispensed.  Most ministries of education are thus failing their citizens in this regard.</p><p>The principle and necessity of geo-edu-ethics have been successfully translated into hands-on practice by Méditerranée 2000 (M2k), which celebrated its 30<sup>th</sup> anniversary last year.  This is a French association based in Cannes that accomplishes on-going, geo-edu-ethical, or geoethical educational, projects for a wide range of audiences.</p><p>Projects range from elementary school up to adult education, and include public awareness campaigns, school visits and trips, ethical tourism, local authority advice and industrial guidance on geoethical matters.  Such projects focus on the promotion of geoethical behaviour and decisions that influence the way humans interact with the Earth systems, especially in regard to waste, coastal areas, water, policy making, pollution, and so on.  The association has been successful in changing geoethical behaviours and attitudes among local people, for example, in regard to recycling, raw materials, flooding, pollution, reducing one’s carbon footprint and energy use.</p><p>The presentation will (a) highlight the absolute necessity of providing geoethical education at all levels of society and in all subject areas of education, (b) outline the geoethical imperative for ordinary citizens (youth, parents, industry, etc.), (c) show how a dedicated and enthusiastic group of people can help citizens to move towards more ethical behavior as they interact with a range of Earth systems, and thus to participate in that geoethical imperative in everyday life.</p>

Relationship between Listeria monocytogenes and Listeria spp. in Seafood Processing Plants

2013 ◽  
Vol 76 (7) ◽  
pp. 1279-1282 ◽  
Author(s):  
WALID Q. ALALI ◽  
DONALD W. SCHAFFNER
Keyword(s):  
Listeria Monocytogenes ◽  
Raw Materials ◽  
Food Products ◽  
Published Data ◽  
Food Contact ◽  
Food Contact Surfaces ◽  
Processing Plants ◽  
Contact Surfaces ◽  
Seafood Processing ◽  
The Relationship

The objective of this study was to evaluate the relationship between prevalence of Listeria monocytogenes as an outcome and Listeria spp. as an explanatory variable by food products, food contact surfaces, and nonfood contact surfaces in seafood processing plants by using peer-reviewed published data. Nine sets of prevalence data of L. monocytogenes and Listeria spp. were collected from published studies and used for the analyses. Based on our analysis, the relationship between L. monocytogenes prevalence and Listeria spp. prevalence in food products (incoming raw materials and finish products) was significant (P = 0.04) with (low) R2 = 0.36. Furthermore, Listeria spp. were not a good indicator for L. monocytogenes when testing food contact surfaces (R2= 0.10). Listeria spp. were a good indicator for L. monocytogenes only on nonfood contact surfaces (R2= 0.90). On the other hand, the presence of Listeria spp. on food contact surfaces (R2= 0.002) and nonfood contact surfaces (R2= 0.03) was not a good indicator for L. monocytogenes presence in food products. In general, prevalence of Listeria spp. does not seem to be a good indicator for L. monocytogenes prevalence in seafood processing plants.

Synthesis and Tribological Properties of TiSe2 Nanoparticles

2017 ◽  
Vol 45 ◽  
pp. 34-41 ◽  
Author(s):  
Qin Shi ◽  
Jing Xu ◽  
Li Feng Dang ◽  
Jun Chen ◽  
Guo Gang Tang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Reaction Time ◽  
Reaction Temperature ◽  
Tribological Properties ◽  
Raw Materials ◽  
Homogeneous Distribution ◽  
Formation Mechanisms ◽  
Base Oil ◽  
Transmission Electron

TiSe2 nanobelts/nanoplates have been successfully fabricated through a facile and environment-friendly pressureless sintered process using micro-sized Ti and Se elements as raw materials. The morphology and structure of the as-prepared TiSe2 products were investigated by X-ray diffractometer, scanning electron microscopy, transmission electron microscopy and high resolution transmission electron microscopy. The experimental results indicated that the morphology of TiSe2 products were strongly dependent on the reaction temperature and reaction time. As the reaction temperature was set at 600°C and 800°C, long belts-like and plates-like structures of as-prepared TiSe2 products could be observed, respectively. However, a mixture of nanobelts and nanoplates could be obtained at a reaction temperature of 700°C. It was also found that the reaction time played a crucial role in obtaining the homogeneous distribution nanoparticles, therefore, reasonable reaction process and formation mechanisms of as-prepared TiSe2 nanoparticles were proposed. Moreover, the tribological properties of the TiSe2 nanobelts/nanoplates were investigated. The test results showed that the addition of TiSe2 nanoparticles could improve the tribological properties of base oil. Furthermore, the friction coefficient of base oil containing TiSe2 nanoplates was lower and more stable than those of TiSe2 nanobelts and pure base oil.

scholarly journals Bio-degradeable Bioplastics sebagai Plastik Ramah Lingkungan. SOIJST Vol. 1 (1):131-153

2018 ◽  
Author(s):  
Kim Poppy Wijayanti
Keyword(s):  
Polylactic Acid ◽  
Human Activities ◽  
Life Style ◽  
Raw Materials ◽  
Technological Development ◽  
Public Awareness ◽  
Negative Consequences ◽  
Environmental Friendliness ◽  
The Many ◽  
Different Characteristics

Massive uses of conventional plastics have brought negative consequences to the aspects of sustainability and environmental friendliness of human activities, due to the problems concerning the availability of its raw materials and eventual wastes. One of the solutions to face these problems is by producing and using plastics that can degrade and be derived from renewable biomasses which are now known as bio-degradeable bioplastics. At least, there are 4 kinds of plastics that can fulfill the criteria as being bio-degradeable bioplastics, namely starch-based plastic, cellulose-based plastics, PLA (polylactic acid), and PHA (polyhydroxylalkanoates). These four kinds of plastics have different characteristics, applications, strengths, and also weaknesses. In spite of the many challenges in the uses of bio-degradeable bioplastics to replace conventional plastics, newest technological development and the birth of stronger public awareness towards a more sustainable and more environmentaly-friendly life style have given stronger stronger forces to increase the uses and urgency of bio-degradeable bioplastics.

scholarly journals FAMILIARIZATION OF HYDROMINERAL RESOURCES IN OIL AND GAS FIELDS OF WESTERN KAZAKHSTAN

2020 ◽  
Author(s):  
N.M. Itemen ◽  
◽  
E.M. Dutova ◽  
Keyword(s):  
Oil And Gas ◽  
Raw Materials ◽  
Published Data ◽  
Technological Solution ◽  
Reservoir Water ◽  
Oil And Gas Fields ◽  
Western Kazakhstan ◽  
Experimental Implementation ◽  
Environmentally Safe ◽  
Gas Fields

Based on the analysis of the published data is shown, economic efficiency of the processing of hydromineral raw materials in various countries of the world. In the course of research for 2017–2019 an experimental implementation of a technological solution for the complex processing of reservoir brines in specific areas (Asar, Bekturly, South Zhetybai deposits) was carried out, a technological scheme has been developed for the extraction of lithium and magnesium from associated brine taking into account their integrated and environmentally safe processing. The main characteristics of reservoir water are established, selected as promising for the extraction of compounds of Li and Mg.

scholarly journals Tinjauan Pustaka : Teknik Pengujian Toksisitas Teratogenik Pada Obat Herbal

2020 ◽  
pp. 31
Author(s):  
Tri Mulyani ◽  
Cinta Ida Julianti ◽  
Rikkit Sihombing
Keyword(s):  
Toxicity Test ◽  
Raw Materials ◽  
Herbal Medicines ◽  
Toxicity Testing ◽  
Toxicity Tests ◽  
Melia Azedarach ◽  
Testing Technique ◽  
General Toxicity ◽  
Bougainvillea Glabra ◽  
Dark Pink

Toxicity testing of natural ingredients used in raw materials for making herbal medicines needs to be done to ensure its safety. In general, toxicity tests are divided into 2 types namely general toxicity and specific toxicity. One specific toxicity test is the teratogenic test. Teratogenic testing is part of a special toxicity test that is intended to determine the toxic effect of a compound on the fetus or fetus. The writing of this journal aims to explain the teratogenic toxicity testing technique by referring to the Organization for Economic Co-operation and Development (OECD) 414 and OECD 236 on herbal medicines. Some examples of herbs used for testing teratogenic toxicity as studied by Lu E. The et al. On Bougainvillea glabra (Paper Flower) with the results of a study of water extracts in purple and dark pink, B. glabra bract is not toxic to embryos, except the pink type with LC 50 85.51 ?g / mL. then there is Mindi leaf (Melia azedarach L) which was investigated by Adisti erlina sutomo et al with the results of extracting at a dose of 3.22 mg / kg bw already causing teratogenic toxicity. And there are still some herbs that are used for teratogenic toxicity testing with mixed results.

Sign in / Sign up

Export Citation Format

Share Document