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Background. Chemical composition and medicinal potential of Centella asiatica (C. asiatica), Cedrus deodara (C. deodara) and Artemisia persica (A. persica) prompts the need to investigate antioxidant attributes of these species as alternative source of natural antioxidants. The main aim of the present investigation was to evaluate the antioxidant potential of methanolic extracts of these plants towards stabilization of sunflower oil as oxidation substrate. Material and methods. Total phenolic and total flavonoid contents, DPPH radical scavenging activity, peroxide value, iodine value, conjugated dienes, trienes and P-anisidine value were determined by recommended methods of AOCS. Results. It was observed that all the plant extracts possessed antioxidant activity, but generalized statement was in favour of Centella asiatica. DPPH scavenging activity of Centella asiatica extract was just like BHT emphasising the antioxidant potential of Centella asiatica in fats and oil containing foods. Conclusion. Centella asiatica extracts can be explored as a source for antioxidant components for food preservation. However, further studies may be carried out to isolate and identify more specific natural and safe antioxidants by combining various analytical techniques. [ABSTRACT FROM AUTHOR]

This study investigates the effect of global supply chain pressures and crude oil prices on the consumer price index from October 1997 to February 2022 using panel linear and nonlinear autoregressive distributed lags (ARDLs, NARDLs). The results showed that the asymmetric effect of the global supply chain on the inflation rate is stronger when the supply chain increases than when it decreases in the long run for advanced economies and vice versa in emerging markets. A one standard deviation of the supply chain pressures has rebounded the inflation rate by about 1.7% and 0.71% for advanced economies and emerging markets, respectively. The findings establish that a 10 U.S. dollar increase in oil prices leads the inflation rate to rise by 0.1%–0.6% for all countries in the short run. However, the impact of the global supply chain index fits much better with the inflation rate than the oil prices in the short and long run, including the subprime crisis, such as the COVID‐19 outbreak, and the beginning of the Russo–Ukrainian conflict. Thus, the empirical results of the current study provide acumens for policymakers of advanced economies and emerging markets to consume green energy and make use of green technology and environmental innovations for counterbalancing the inflation issues induced by the higher rates of oil prices without halting the economic growth and sustainable development. [ABSTRACT FROM AUTHOR]

Since two-dimensional transition metal dichalcogenides (TMDs) and halide-based perovskites display superior optoelectronic properties, interfacing of TMDs and Janus materials with halide perovskites may improve the performance of photovoltaics and photodetectors. Using first-principles computations, this work thoroughly analyzes the electronic as well as optical properties of 2D CsPbX 3 /MYZ composites (X = Cl, Br, I; M = Mo, W; and YZ = S, Se). The findings demonstrate that the interaction of CsPbX 3 with the MYZ surface enables bandgap tuning, and interfacial electric field causing spatial charge separation, and results in small values of effective mass. In CsPbI 3 /MYZ and CsPbX 3 /MoS 2 hybrids, type-II band alignment ensures efficient carrier separation, thus lowering the recombination. While other heterostructures exhibited a type-I band alignment, suitable for long-lifetime photodetectors. The HSE06 bandgap for all heterostructures resides within desired range of 1.23–3 eV. The low tunnel barrier heights also favor high circuit voltages, suitable for photovoltaic applications. Next, remarkable absorption in hybrids promises their suitability for optoelectronics and radiation detection. Incorporation of water redox levels further validates their capability as photocatalysts driving overall water-splitting photocatalysis. [ABSTRACT FROM AUTHOR]