scholarly journals BIODEGRADABLE NONWOVEN ACTIVATED POLYESTER WITH CHITOSAN: POTENTIAL APPLICATION IN THE COSMETIC INDUSTRY

2020 ◽  
Vol XXV ◽  
pp. 94-110
Author(s):  
Karolina Gzyra-Jagieła ◽  
Monika Owczarek ◽  
Monika Szkopiecka ◽  
Sylwia Jagodzińska ◽  
Marzena Dymel ◽  
...  
Keyword(s):  
Research Work ◽  
Sodium Hyaluronate ◽  
Nonwoven Fabric ◽  
Beneficial Effects ◽  
Natural Substances ◽  
Global Environmental ◽  
Cosmetic Industry ◽  
Chemical Purity ◽  
Unique Composition ◽  
Applied Coating

Textile products enriched with natural substances, e.g. hyaluronic acid, plant hydrolates, collagen and chitosan, may find wide application in cosmetics because of increasing consumer interest in natural products. Furthermore, in view of global environmental pollution, products that are produced through biochemical changes as a result of composting are sought. This makes it possible to enter such designed cosmetic products into the scheme of the currently desired circular economy. Compostable textiles are an ecological alternative to product backlogs and polluting the environment in the form of post-consumer waste. Therefore, this research work developed a technology for applying natural substances on a biodegradable polyester fibrous substrate. This study developed the optimal composition of a mixture consisting of natural substances with properties applicable to the cosmetic industry, for applications such as cosmetic masks to improve the appearance of the skin. The composition of active substances that have beneficial effects on the skin, e.g. moisturizing, regenerating, antibacterial and caring, was determined. The mixture was effectively applied on a spunbound nonwoven substrate of made from aliphatic-aromatic copolyester by impregnation. The employed polymer degraded in a compost environment and its modifiers additionally supported this process. The unique composition of the applied coating layer consisted of a mixture of sodium hyaluronate, collagen, bitter orange blossom hydrolate (Neroli) and chitosan lactate. The coated nonwoven fabric was subjected to physical, mechanical, microbiological as well as chemical purity and structural tests (Fourier transform infrared spectroscopy and scanning electron microscopy) and degree of degradation in a compost environment was assessed on the basis of its weight loss.

Azolla as Waste Decomposer and Bio-fertilizer: A Review

2021 ◽  
Vol 2 (1) ◽  
pp. 108-116
Author(s):  
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Crop Production ◽  
Research Work ◽  
Soil Health ◽  
Active Role ◽  
Sewage Water ◽  
Aquatic Fern ◽  
Beneficial Effects ◽  
Cyanobacterium Anabaena

In modern-day agriculture, we are well aware of the utilization of artificial fertilizers in the soil to supply major soil nutrients for plant growth and development. The most common used nutrients in agroecosystem are nitrogen (N), phosphorus (P), potassium (K), and sulfur (S). These fertilizers cause an increase in crop production, but the excess use of these fertilizers has several health hazards for the plants and animals feeding on them. Presently the consumer's preference has been shifted from synthetic fertilizer-based food to organic food. This paper aims to review the results of the research work done in the past few decays on the environment detoxification and beneficial effects of Azolla (aquatic fern) on plants and soil health. Hopefully, it will help the collaborative research on this “green gold” in the future.Azolla fixes the free-living atmospheric N as they have symbiotic Cyanobacterium Anabaena Azolla. Azolla adds organic matter and provides natural mulch to the soil because of these benefits is known as bio-fertilizer. Azolla remediates industrial and sewage water by accumulating heavy metals in their body and plays an active role in the reclamation of salt-affected soil by accumulating heavy metals and salts and by increasing the soil organic matter

Impact of cross-lapping angle and needling parameters on mechanical and functional properties of nonwoven air filter fabric

2021 ◽  
pp. 152808372110481
Author(s):  
Wondwossen Mamuye ◽  
SM Ishtiaque ◽  
Rupayan Roy ◽  
Priyal Dixit
Keyword(s):  
Fibre Orientation ◽  
Structural Characteristics ◽  
Research Work ◽  
Areal Density ◽  
Nonwoven Fabric ◽  
Mean Flow ◽  
Stroke Frequency ◽  
Air Filter ◽  
Box Behnken Design ◽  
The Cross

This research work investigated the influence of the cross-lapping angle in combination with punch density and stroke frequency on structural characteristics and properties of nonwoven fabric. An attempt has been made to change the cross-lapping angle by keeping the number of layers constant to maintain the same areal density of fabrics. The fibre orientation in the carded web was measured by using Lindsley and image analysis methods. Three variables, that is, cross-lapping angle, punch density and stroke frequency, were considered for the sampling plan to create a three-factor three-level Box–Behnken design. The properties such as mean flow pore size, bursting strength, filtration efficiency and pressure drop were evaluated and analysed in the light of fibre orientation in the carded web. It was concluded that the cross-lapping angle influenced the fibre orientation to a large extent; accordingly, the properties of nonwoven fabric were highly influenced by the fibre orientation.

scholarly journals The Pharmacological Activity, Biochemical Properties, and Pharmacokinetics of the Major Natural Polyphenolic Flavonoid: Quercetin

Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 374 ◽  
Author(s):  
Gaber El-Saber Batiha ◽  
Amany Magdy Beshbishy ◽  
Muhammad Ikram ◽  
Zohair S. Mulla ◽  
Mohamed E. Abd El-Hack ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Biological Activities ◽  
Inhibitory Effect ◽  
Biochemical Properties ◽  
Beneficial Effects ◽  
Natural Substances ◽  
Current Review ◽  
Flavonoid Quercetin ◽  
Small Intestines ◽  
The Brain

Flavonoids are a class of natural substances present in plants, fruits, vegetables, wine, bulbs, bark, stems, roots, and tea. Several attempts are being made to isolate such natural products, which are popular for their health benefits. Flavonoids are now seen as an essential component in a number of cosmetic, pharmaceutical, and medicinal formulations. Quercetin is the major polyphenolic flavonoid found in food products, including berries, apples, cauliflower, tea, cabbage, nuts, and onions that have traditionally been treated as anticancer and antiviral, and used for the treatment of allergic, metabolic, and inflammatory disorders, eye and cardiovascular diseases, and arthritis. Pharmacologically, quercetin has been examined against various microorganisms and parasites, including pathogenic bacteria, viruses, and Plasmodium, Babesia, and Theileria parasites. Additionally, it has shown beneficial effects against Alzheimer’s disease (AD), and this activity is due to its inhibitory effect against acetylcholinesterase. It has also been documented to possess antioxidant, antifungal, anti-carcinogenic, hepatoprotective, and cytotoxic activity. Quercetin has been documented to accumulate in the lungs, liver, kidneys, and small intestines, with lower levels seen in the brain, heart, and spleen, and it is extracted through the renal, fecal, and respiratory systems. The current review examines the pharmacokinetics, as well as the toxic and biological activities of quercetin.

scholarly journals Phytoestrogens: Dietary Intake, Bioavailability, and Protective Mechanisms against Colorectal Neoproliferative Lesions

Nutrients ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1709 ◽  
Author(s):  
Maria Teresa Viggiani ◽  
Lorenzo Polimeno ◽  
Alfredo Di Leo ◽  
Michele Barone
Keyword(s):  
Dietary Intake ◽  
Intestinal Microbiota ◽  
Estrogen Receptor Beta ◽  
Epidemiological Data ◽  
In Vivo Studies ◽  
Beneficial Effects ◽  
Natural Substances

Phytoestrogens are natural substances that have been extensively studied for their beneficial effect on human health. Herein, we analyzed the data of the literature on the role of phytoestrogens in the prevention of colorectal neoproliferative lesions (CNL). Both in vitro and in vivo studies suggest that the beneficial effects of phytoestrogens on CNL mainly depend on their ability to bind estrogen receptor beta (ERβ) in the intestinal mucosa and counter ER-alpha (ERα) activity. Epidemiological data demonstrate a correlation between the low prevalence of CNL in Eastern populations and the consumption of soy products (phytoestrogen-enriched diet). However, both observational and interventional studies have produced inconclusive results. In our opinion, these discrepancies depend on an inadequate evaluation of phytoestrogen intake (dietary questionnaires were not aimed at establishing phytoestrogen intake) and absorption (depending mainly on the intestinal microbiota of the analyzed subjects). For this reason, in the present review, we performed an overview of phytoestrogen dietary intake and metabolism to offer the reader the opportunity for a better interpretation of the literature. Future prospective trials focusing on the protective effect of phytoestrogens against CNL should take into account both their dietary intake and absorption, considering the effective role of the intestinal microbiota.

scholarly journals Effect of Huoxuejiangu Decoction on Osteoarthritis

2020 ◽  
Vol 185 ◽  
pp. 03017
Author(s):  
Zike He ◽  
Kaifei He ◽  
Shangzeng Wang
Keyword(s):  
Clinical Symptoms ◽  
Research Work ◽  
Sodium Hyaluronate ◽  
Effective Rate ◽  
Clinical Treatment ◽  
Control Group ◽  
Clinical Value ◽  
Improvement Rate ◽  
Significant Difference ◽  
Experimental Group

Objective: To explore the clinical intervention effect of applying Huoxue Jiangu Decoction in the treatment of patients with osteoarthritis. Methods: Research work was carried out in our hospital from December 2018 to December 2019. A total of 100 patients with osteoarthritis received treatment during this period were selected and divided into two groups using random number method. One group was given sodium hyaluronate injection for treatment, which was the control group, and the other group was given Huoxuejiangu Decoction combined with sodium hyaluronate injection, which was the experimental group. The clinical treatment of the two groups of patients was compared and analyzed. Results: The patients' pain levels were compared. There was no significant difference between the groups before the intervention treatment. After treatment, the experimental group score was (3.05±0.55), which was lower than the control group, the improvement effect was more significant, and the difference between the groups was significant (P< 0.05), the experimental group had a better effect. The clinical treatment of the two groups of patients was compared and analyzed. There was no significant difference in the WOMAS index between the two groups before treatment. After treatment, the score of the experimental group was (34.33±6.98), and the improvement rate was (37.45±13.22). After treatment, the score was lower and the improvement rate was higher, which was significantly higher than the control group (P <0.05), which was significant. The treatment effective rate of the patients in the experimental group was 80.00%, and the treatment effective rate of the patients in the control group was 64.00%. When comparing, the effective rate of the experimental group was higher, and the data comparison between the groups was significantly different. Conclusion: For the patients with osteoarthritis, the application of Huoxue Jiangu Decoction has a significant clinical effect, which can reduce the patient's pain level, improve the patient's clinical symptoms, have high clinical value, and it can be promoted.

scholarly journals Flavonoids and Mitochondria: Activation of Cytoprotective Pathways?

Molecules ◽  
2020 ◽  
Vol 25 (13) ◽  
pp. 3060 ◽  
Author(s):  
Anna Kicinska ◽  
Wieslawa Jarmuszkiewicz
Keyword(s):  
Cellular Response ◽  
Plant Secondary Metabolites ◽  
Atp Synthesis ◽  
Apoptotic Pathway ◽  
Beneficial Effects ◽  
Natural Substances ◽  
Mitochondrial Signaling ◽  
End Effectors ◽  
Reactive Oxygen Species Signaling

A large number of diverse mechanisms that lead to cytoprotection have been described to date. Perhaps, not surprisingly, the role of mitochondria in these phenomena is notable. In addition to being metabolic centers, due to their role in cell catabolism, ATP synthesis, and biosynthesis these organelles are triggers and/or end-effectors of a large number of signaling pathways. Their role in the regulation of the intrinsic apoptotic pathway, calcium homeostasis, and reactive oxygen species signaling is well documented. In this review, we aim to characterize the prospects of influencing cytoprotective mitochondrial signaling routes by natural substances of plant origin, namely, flavonoids (e.g., flavanones, flavones, flavonols, flavan-3-ols, anthocyanidins, and isoflavones). Flavonoids are a family of widely distributed plant secondary metabolites known for their beneficial effects on human health and are widely applied in traditional medicine. Their pharmacological characteristics include antioxidative, anticarcinogenic, anti-inflammatory, antibacterial, and antidiabetic properties. Here, we focus on presenting mitochondria-mediated cytoprotection against various insults. Thus, the role of flavonoids as antioxidants and modulators of antioxidant cellular response, apoptosis, mitochondrial biogenesis, autophagy, and fission and fusion is reported. Finally, an emerging field of flavonoid-mediated changes in the activity of mitochondrial ion channels and their role in cytoprotection is outlined.

scholarly journals Beneficial effects of specific natural substances on oral health

2017 ◽  
Vol 38 (12) ◽  
pp. 1181-1189
Author(s):  
Sameer Shaikh ◽  
S. Manoj Kumar
Keyword(s):  
Oral Health ◽  
Beneficial Effects ◽  
Natural Substances

Study of Electrospun Poly\acrylonitrile (PAN) and PAN/CNT Composite Nanofibrous Webs

2015 ◽  
Vol 19 (1) ◽  
pp. 36-45 ◽  
Author(s):  
M. K. Sinha ◽  
B. R. Das ◽  
A. Srivastava ◽  
A. K. Saxena
Keyword(s):  
Mechanical Properties ◽  
Polymer Matrix ◽  
Specific Conductivity ◽  
Research Work ◽  
Fibre Diameter ◽  
Nonwoven Fabric ◽  
Coating Process ◽  
Carbon Nano Tube ◽  
Conductive Properties ◽  
Poly Acrylonitrile

The electrospinng of PAN and PAN/CNT composite webs is carried out with the commercially available Nanospider machine. The webs are spun under similar processes and coated on Polypropylene spun bonded nonwoven fabric. This research work reports on the influence of multi-walled carbon nano tube (MWCNT) on the morphology, tensile properties, conductivity, thermal, chemical and crystalline structure of PAN and PAN/CNT composite nanofibrous webs. The morphological developments are explained on the basis of nanofibre diameter and web density as depicted by FESEM images. An addition of CNT greatly affects the morphology of webs, increases fibre diameter, decreases web density and leads to a roughened web surface. The mechanical properties of PAN /CNT composite webs are also found to be influenced by CNT concentration. The addition of MWCNT to PAN enhances the conductive properties of webs. The specific conductivity of PAN/CNT composite webs is found to be in order of 10-6 S/cm, which falls in the semiconducting regime and follows Ohm's law of conductivity. The TGA plots confirmed that the PAN/CNT composite web is more thermally stable than the PAN web. The presence of CNT in the polymer matrix is evidenced by D and G band, indicating a successful electrospun coating process.

Physico-mechanical and erosive wear analysis of polyester fibre-based nonwoven fabric-reinforced polymer composites

2018 ◽  
Vol 49 (4) ◽  
pp. 447-464 ◽  
Author(s):  
Sachin Tejyan ◽  
Tej Singh ◽  
Amar Patnaik ◽  
Gusztáv Fekete ◽  
Brijesh Gangil
Keyword(s):  
Impact Velocity ◽  
Polyester Fibre ◽  
Research Work ◽  
Erosive Wear ◽  
Nonwoven Fabric ◽  
Fibre Content ◽  
Epoxy Composites ◽  
Wear Behaviour ◽  
Air Jet ◽  
The Impact

The research work aims to study the physico-mechanical and erosive wear behaviour of polyester fibre-based needle-punched nonwoven fabric mat reinforced epoxy composites. Therefore, the epoxy composites with varying proportion of polyester fibre-based needle-punched nonwoven fabric mat were fabricated and characterized for their physical, mechanical and erosive wear properties. The experimental results indicated that the increase of fibre content enhanced the physical and mechanical properties of the composites. To optimize and improve the erosive wear performance of fabricated composites, the Taguchi method was implemented. For this, L27 orthogonal array was constructed to examine the influence of the five control factors including impingement angle, impact velocity, stand-off distance, fibre content and erodent size. The experimental schedule was carried out in an air jet erosion test rig. The results indicate that the impact velocity emerges as the most significant control factor affecting the erosive wear of fabricated composites. Finally, the possible erosive wear mechanisms were studied by examining the composites eroded surfaces with scanning electron microscopy.

Properties of Fly Ash Based Geopolymer Concrete Exposed to Sustained Elevated Temperatures

2011 ◽  
Vol 250-253 ◽  
pp. 962-968 ◽  
Author(s):  
M.S. Sudarshan ◽  
R.V. Ranganath
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Elevated Temperature ◽  
Fly Ash ◽  
Elevated Temperatures ◽  
Research Work ◽  
Acid Resistance ◽  
Geopolymer Concrete ◽  
Cement Concrete ◽  
Beneficial Effects

Fly ash based geopolymer concrete is gaining importance in the context of developing alternatives to cement concrete. The research work available in the literature shows many beneficial effects of the material in terms of its high early compressive strength, tensile strength, reduced shrinkage, good acid resistance etc., However, there are very few studies carried out on the influence of sustained elevated temperature on the properties of geopolymer concrete. This paper presents the results of some of the properties of fly ash based geopolymer concrete activated using sodium silicate and sodium hydroxide and subjected to elevated temperature at 150°C, 200°C, 300°C, 400ºc under sustained durations of 1 hour, 2 hours and 4 hours. The results show that residual compressive strength is about 20% less than the normal at about 200°C itself possibly due to the development of vapour pressure formed by the non-reactive water present in the system. Beyond 2 hours of sustenance, there is not much of a difference in the properties of concrete.

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