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ACS Omega Aug 2023L. (Petiveriaceae), commonly known as the pigeon berry, accumulates betalains in berries. The present study was focused on identifying the phytoconstituents, mineral...
L. (Petiveriaceae), commonly known as the pigeon berry, accumulates betalains in berries. The present study was focused on identifying the phytoconstituents, mineral content, fatty acid composition, phenolics, flavonoids, antinutritional factors, and antioxidant activities of different plant parts (leaf, stem, root, and seeds), which are otherwise not well explored. Phytoconstituent analysis revealed seeds as a potential source of carbohydrates (50.15 g/100 g), proteins (10.96 g/100 g), and fats (11.25 g/100 g). Roots showed the highest fat (17.66 g/100 g) and dietary fiber (81.49 g/100 g). Leaves and roots contain more iron (29.59 and 29.39 mg/100 g), whereas seed has high zinc content (12.09 mg/100 g). Leaf oil showed 47.83 g/100 g of omega-3-fatty acid, confirmed by GC-MS analysis. Seed oil showed 22.23 g/100, 44.48 g/100, and 24.04 g/100 g of palmitic, oleic, and linoleic acids, respectively. The leaf extract has the highest TPC (597.55 mg/100 g), followed by the seed (421.68 mg/100 g). The leaf's 80% ethanolic extract had high TFC (2442.19 mg/100 g), followed by 70% methanolic extract (1566.25 mg/100 g). The antinutritional profile indicated significant phytic acid and oxalates in the leaf (9.3 g/100 and 2.07 g/100 g) and stem (6.9 and 1.58 g/100 g) and low tannin content (<0.5 g/100 g). The leaf's 80% ethanolic extract exhibited double the TAA than 70% methanolic extract (1.52 g/100 g). The leaf with an 80% ethanolic extract had the lowest DPPH and ABTS radical scavenging EC (2.22 and 0.37 mg/mL). The leaf with an 80% ethanolic extract (479.73 mg/100 g) and seed (391.14 mg/100 g) had the highest FRAP activity. Our study proves that different parts of had a good content of phytoconstituents, bioactives, and antioxidant activities. Hence, leaves and seeds are a novel source of omega fatty acids and minerals reported for the first time and have potential applications in the food and pharmaceutical industries.
PubMed: 37576640
DOI: 10.1021/acsomega.3c02883 -
Polymers Nov 2023The use of alternative insulating liquids instead of mineral oil in transformers is spreading around the world due to their superior fire resistance. Furthermore,...
The use of alternative insulating liquids instead of mineral oil in transformers is spreading around the world due to their superior fire resistance. Furthermore, researchers have demonstrated that these oils increase the lifespan of the solid insulation of the transformers and, thus, the life expectancy of the equipment. Retrofilling of transformers with natural and synthetic esters allows companies to benefit from the properties of using these liquids without making an investment into new machinery. This paper investigated the ageing process of Kraft paper that was retrofilled with a natural ester in the laboratory. The Kraft paper samples were subjected to accelerated thermal ageing in an oven at 130 °C, and markers such as the degree of polymerisation and tensile strength were measured. The ageing tests comprised a first period, where the samples were immersed in mineral oil, followed by a replacement of the oil with a natural ester. As moisture is a determinant factor for paper ageing, two sets of samples with different moisture contents were tested. The results showed that the retrofilling of the transformers may slow down the degradation rate of the solid insulation despite the presence of remaining mineral oil adsorbed in the paper.
PubMed: 38006070
DOI: 10.3390/polym15224345 -
RSC Advances Mar 2024The transition from conventional polyurethane (PU) to non isocyanate polyurethane (NIPU) is driven mainly by safety concerns, environmental considerations, and... (Review)
Review
The transition from conventional polyurethane (PU) to non isocyanate polyurethane (NIPU) is driven mainly by safety concerns, environmental considerations, and sustainability issues associated with the current PU technology. NIPU has emerged as a promising alternative, addressing limitations related to traditional PU production. There has been increasing interest in bio-based NIPU aligning with the aspiration for green materials and processes. One important biomass resource for the development of bio-based NIPU is vegetable oil, an abundant, renewable, and relatively low cost feedstock. As such, this review aims to provide insight into the progression of NIPU derived from vegetable oils. This article highlights the synthetic and green approach to NIPU production, emphasizing the method involving the polyaddition reaction of cyclic carbonates and amines. The review includes case studies on vegetable oil-based NIPU and perspectives on their properties. Further, discussions on the potential applications and commercial importance of PU and NIPU are included. Finally, we offer perspectives on possible research directions and the future prospects of NIPU, contributing to the ongoing evolution of PU technology.
PubMed: 38505386
DOI: 10.1039/d3ra08684d -
Plants (Basel, Switzerland) Jul 2023The aim of the study was to investigate how essential oil production and associated chemical composition and related biological activity could be influenced by different...
The aim of the study was to investigate how essential oil production and associated chemical composition and related biological activity could be influenced by different cultivation treatments and distillation methods. Mill. (fennel), L. (oregano) and L. (thyme) were cultivated in absence of any fertilizer (control) and in presence of three different fertilizers: a chemical one with augmented mineral phosphorus and potassium, a second added with hydrolyzed organic substance and mineral phosphorus and potassium (organic-mineral) and a third one treated with a high content of organic nitrogen of protein origin (organic). The plants were subjected to steam distillation using two modalities, recycled and continuous, to obtain 32 essential oil samples. Chemical composition analysis was performed using gas chromatography-mass spectrometry; in vitro antimicrobial activity was evaluated using a broth microdilution method. In general, the recycled distillation method appeared to have a slightly higher yield than the continuous method. The "mineral" and "organic-mineral" treatments resulted in a higher yield compared to the "organic" or "control" treatments, and this was particularly evident in the recycled method. The "control" plants had a lower yield of essential oils. Anethole (13.9-59.5%) and estragole (13.4-52.2%) were the main constituents of the fennel oils; -cymene and its derivatives carvacrol and thymol were the main constituents of the oregano and thyme samples. The antimicrobial activity of the thyme oils on ranged from 0.31 to 0.16% (); a lower effect of the oregano samples and no activity of the fennel samples were observed. The essential oils failed to inhibit the growth of strains.
PubMed: 37570990
DOI: 10.3390/plants12152835 -
Scientific Reports Aug 2023Pore fluids control the diagenetic processes and storage spaces of deep clastic rock reservoirs and have become a major area of interest within the fields of...
Pore fluids control the diagenetic processes and storage spaces of deep clastic rock reservoirs and have become a major area of interest within the fields of sedimentology and petroleum geology. This paper aims to relate the diagenetic processes of the Oligocene Zhuhai sandstones in the Baiyun Sag to pore fluids varying with burial depth. The types and distribution patterns of authigenic minerals are investigated through analysis of petrographic, mineralogical, and geochemical features to illustrate the origin and flow patterns of pore fluids and their influences on reservoir diagenesis. Strong cementation of eogenetic carbonate cement near the sandstone-mudstone interface was a consequence of material migration from adjacent mudstones on a large scale. The pore fluids were mainly affected by microbial methanogenesis and carbonate mineral dissolution in adjacent mudstones during eogenesis. The pore fluids were diffusively transported in a relatively open geochemical system within a local range. Support for this model is provided by the heavier stable isotopic values present in eogenetic calcite and dolomite. Feldspar dissolution during early mesogenesis was spatially accompanied by the precipitation of authigenic quartz and ferroan carbonate cement. Pore fluids in this period were rich in organic acids and CO2, and their migration mechanism was diffusive transport. The obviously lighter carbon and oxygen isotopic compositions of the ferroan calcite support this inference. During late mesogenesis, the input of deep hydrothermal fluid might have been partly responsible for the precipitation of ankerite, barite and authigenic albite. Oil charging may have inhibited carbonate cementation and compaction, accordingly preserving porosity, and together with authigenic kaolinite, might have promoted the transition of the reservoir from water wet to oil wet to the benefit of oil entrapment. The findings reported here shed new light on the evaluation and prediction of sandstone reservoirs that have experienced multiple periods of fluid flow.
PubMed: 37640819
DOI: 10.1038/s41598-023-41428-3 -
Insects Dec 2023(Hübner) and (Guenée) are the most devastating insect pests at the ear stage of maize, causing significant losses to the sweet corn industry. Pesticide control...
(Hübner) and (Guenée) are the most devastating insect pests at the ear stage of maize, causing significant losses to the sweet corn industry. Pesticide control primarily relies on spraying during the flowering stage, but the effectiveness is inconsistent since larvae are beneath husks within hours to a day, making pesticide treatments simpler to avoid. Insufficient understanding of pest activity patterns impedes precise and efficient pesticide control. and in corn fields were monitored in the last few years in Beijing China, and we observed a higher occurrence of both moths during the R1 stage of sweet corn. Moth captures reached the maximum during this stage, with 555-765 moths per hectare corn field daily. The control efficiency of nine synthetic insecticides and five biopesticides was assessed in the field during this period. Virtako, with mineral oil as the adjuvant, appeared to be the most effective synthetic insecticide, with the efficiencies reaching 88% and 87% on sweet and waxy corn, respectively. Pesticide residue data indicated that the corn is safe after 17 days of its use. The most effective bioinsecticide was combined with mineral oil, with 88% and 80% control efficiency in sweet and waxy corn, respectively. These results suggested that spraying effective insecticides 5 days after corn silking could effectively control corn ear pests and . Our findings provide valuable insights for the development of ear pest management strategies in sweet corn.
PubMed: 38132602
DOI: 10.3390/insects14120929 -
Plants (Basel, Switzerland) Nov 2023Highly nutritious traditional plants which are rich in bioactive substances are attracting increasing attention. In this study, the nutritional value, chemical...
Nutritional Value, Volatile Components, Functional Metabolites, and Antibacterial and Cytotoxic Activities of Different Parts of Champ., a Medicinal and Edible Plant with Potential for Development.
Highly nutritious traditional plants which are rich in bioactive substances are attracting increasing attention. In this study, the nutritional value, chemical composition, biological activities, and feed indices of different parts of were comprehensively evaluated. In terms of its nutritional value, this study demonstrated that the leaves, flowers and seeds of were rich in elements and amino acids; the biological values (BVs) of these ingredients ranged from 85% to 100%, showing the extremely high nutritional value of this plant. GC-MS analysis suggested that the main chemical components of the flower volatile oil were -hexadecanoic acid (21.73%), tetracosane (19.96%), and pentacosane (5.86%). The antibacterial activities of the flower and seed extracts were significantly stronger than those of the leaves and branches. The leaf extract displayed the strongest antifungal activities (EC values: 18.28 ± 0.54 μg/mL for and 568.21 ± 33.60 μg/mL for ) and were the least toxic to mouse fibroblasts (L929) (IC value: 0.71 ± 0.04 mg/mL), while flowers were the most toxic (IC value: 0.27 ± 0.03 mg/mL). In addition, the abundance of fiber, protein, mineral elements, and functional metabolite contents indicated the potential applicability of as an animal feed. In conclusion, as a traditional herbal plant used for medicinal and food purposes, shows potential for safe and multifunctional development.
PubMed: 38005797
DOI: 10.3390/plants12223900 -
Theriogenology Mar 2024Most in vitro models of oviduct epithelial cells (OEC) used thus far to gain insights into embryo-maternal communication induce cell dedifferentiation or are technically...
Most in vitro models of oviduct epithelial cells (OEC) used thus far to gain insights into embryo-maternal communication induce cell dedifferentiation or are technically challenging. Moreover, although the presence of developing embryos has been shown to alter gene expression in OEC, the effect of embryos on OEC physiology remains largely unknown. Here, we propose a model based on bovine oviduct epithelial spheroids (OES) with specific shape and diameter (100-200 μm) criteria. The aims of this study were to i) determine the appropriate culture conditions of bovine OES cultured in suspension by evaluating their morphology, total cell number, viability, and activity of ciliated cells; ii) monitor gene expression in OES at the time of their formation (day 0) and over the 10 days of culture; and iii) test whether the vicinity of developing embryos affects OES quality criteria. On day 10, the proportions of vesicle-shaped OES (V-OES) were higher in M199/500 (500 μl of HEPES-buffered TCM-199) and synthetic oviduct fluid (SOF)/25 (25-μL droplet of SOF medium under mineral oil) than in M199/25 (25-μL droplet of M199 under mineral oil). The proportion of viable cells in V-OES was not affected by culture conditions and remained high (>80%) through day 10. The total number of cells per V-OES decreased over time except in SOF/25, while the proportions of ciliated cells increased over time in M199/500 but decreased in M199/25 and SOF/25. The movement amplitude of OES in suspension decreased over time under all culture conditions. Moreover, the gene expression of ANXA1, ESR1, HSPA8, and HSPA1A in OES remained stable during culture, while that of PGR and OVGP1 decreased from day 0 to day 10. Last, the co-culture of developing embryos with OES in SOF/25 increased the rates of blastocysts on days 7 and 8 compared to embryos cultured alone, and increased the proportion of V-OES compared to OES cultured alone. In conclusion, M199/500 and SOF/25 provided the optimal conditions for the long-time culture of OES. The supporting effect of OES on embryo development and of developing embryos on OES morphology was evidenced for the first time. Altogether, these results point OES as an easy-to-use, standardizable, and physiological model to study embryo-maternal interactions in cattle.
Topics: Female; Cattle; Animals; Mineral Oil; Fertilization in Vitro; Embryo, Mammalian; Fallopian Tubes; Oviducts; Blastocyst; Culture Media; Embryonic Development
PubMed: 38271765
DOI: 10.1016/j.theriogenology.2024.01.022 -
Journal of Global Health Nov 2023Achieving financial risk protection for the whole population requires significant financing for health. Health systems in low- and middle-income countries (LMIC) are...
BACKGROUND
Achieving financial risk protection for the whole population requires significant financing for health. Health systems in low- and middle-income countries (LMIC) are plagued with persistent underfunding, and recent reductions in official development assistance have been registered. To create fiscal space for health, the pursuit of efficiency gains and exploring innovative health financing for health seem attractive. This paper sought to synthesize available evidence on the nature of innovative health financing instruments, mechanisms and policies implemented in Africa. We further reviewed the factors that hinder or facilitate implementation, the lessons learnt on the structure, the development process and the implementation.
METHODS
We conducted a systematic scoping review of the literature to analyze the nature, type, and factors impacting the implementation of innovative health financing mechanisms in the World Health Organization (WHO) African region.
RESULTS
Innovative health financing mechanisms are increasing in the WHO African region as a result of international policy, the need to improve healthy eating and social life of the populace, advocacy and the availability of international mechanisms to which countries can subscribe. The 41 documents included in this review reported ten innovative financing mechanisms in 43 out of the 47 WHO Africa region member states. The most common mechanisms include an excise tax on tobacco products (43 countries) and alcoholic beverages and spirits (41 countries), airline ticket levy (18 countries), sugar-based beverages tax (seven countries), and levy on oil, gas and mineral tax (four countries). Other mechanisms include the human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) trust fund, the social impact bond, the financial transaction tax, mobile phone tax and equity funds. Funds generated from many mechanisms are not allocated to health, although some portions are allocated to health-related activities. In some countries where mechanisms implemented are public health-related, emphasis is placed on positive health behavior beyond raising funds. Persistent resistance from industries due to conflicting economic policies is a major challenge.
CONCLUSIONS
Leveraging international policies and setting up intersectoral committees to develop and implement innovative mechanisms that involve excise taxes are recommended as possible solutions to the conflicts of interest.
Topics: Humans; Healthcare Financing; World Health Organization; Financial Management; Public Policy; Alcoholic Beverages
PubMed: 37962340
DOI: 10.7189/jogh.13.04153 -
Poultry Science Dec 2023Keel bone fractures and osteoporosis are prevalent and damaging skeletal issues in the laying hen industry. There is a large interest in improving bone quality...
Keel bone fractures and osteoporosis are prevalent and damaging skeletal issues in the laying hen industry. There is a large interest in improving bone quality parameters to reduce or eliminate these conditions, thus improving bird welfare. Both essential fatty acids (EFA) and vitamin D can play a role in bone metabolism. The hypothesis of this study was that birds supplemented with lower n-6:n-3 EFA ratio or vitamin D would have improved bone properties compared to a control diet. A total of 3,520 Lohmann Brown-Lite pullets were used in this study. Pullets were housed on the floor from 0 to 17 wk of age and then moved to an aviary (17-52 wk of age). Starting at 12 wk of age, birds were split into diet treatments-control, flax, fish, or vitamin D diets with n-6:n-3 ratios of 6.750, 0.534, 0.534, and 6.750, respectively. Diets were formulated to be isonitrogenous and isocaloric. Basal vitamin D3 levels were formulated to be 2,760 IU/kg across all diets; for the vitamin D diet, the vitamin D3 level was increased to 5,520 IU/kg. Hens on fish and vitamin D diets had greater bone density, keel bone volume, digital bone mineral content, and keel condition compared to flax and control hens. Additionally, birds fed the vitamin D diet had the heaviest body weights compared to birds fed fish or control diets. Birds fed the flax and vitamin D diets had improved feather coverage across multiple body regions. Feeding an n-3 EFA- or vitamin D-enriched diet decreased mortality by 1.6 to 3.3% compared to the control. The fish and vitamin D diets generated mixed production performance. Compared to the other treatments, the vitamin D diet generated higher case weights but lower hen day percentage throughout the study. When compared to the other treatments, the fish diet had the lowest case weights but had a greater hen day percentage after 36 wk of age. Results indicate that a fish-based EFA and vitamin D supplementation show promise in improving skeletal health but require further investigation.
Topics: Animals; Female; Chickens; Fatty Acids, Omega-3; Dietary Supplements; Diet; Vitamins; Cholecalciferol; Animal Feed
PubMed: 37852049
DOI: 10.1016/j.psj.2023.103089