by Carlos Armenta-Déu

Received: 20 September 2024;  Published: 20 January 2025;  doi: 10.21926/rpse.2501001

This work focuses on designing a control unit for improving Proton Exchange Membrane Fuel Cell (PEMFC) performance powering electric vehicles when operating in variable atmospheric pressure conditions, a current situation in mountainous countries with sudden changes in road altitude. The paper studies and analyzes the PEM fuel cell behavior working with hydrogen supply from a pressurized tank and oxygen input from atmospheric air supply in journeys with continuous variation of road level due to the orography. The w [...]

by Kevin Liu  , Wenbiao LU  and Kaiyu Xiao

Received: 06 April 2026;  Published: 09 September 2026;  doi: 10.21926/rpn.2603021

Trace minerals (Cu, Fe, Mn, Zn, I and Se) are essential components of numerous enzymes thus indispensable for metabolism, immunity, growth and reproduction. Inorganic forms of these minerals (ITM) are widely used in the poultry industry often with much in excess in order to cover various uncertainties, resulting in not only oxidative deterioration of feeds and gastro-intestinal health, but also large proportions to be excreted into the eco-system, leading to many jurisdictions to set up limits of Cu and Zn usages i [...]

by Ricardo H. Hernández-Figueroa  , Aurelio López-Malo  and Emma Mani-López

Received: 17 April 2026;  Published: 04 August 2026;  doi: 10.21926/rpn.2603020

Cottage cheese is a promising matrix for delivering probiotic microorganisms due to its buffering capacity, high moisture content, and consumer acceptance. In this study, a probiotic cottage cheese incorporating Lactobacillus acidophilus LA-5 was developed and evaluated against a control formulation and commercial products. Physicochemical properties, probiotic viability, acidification kinetics, and sensory acceptance were assessed during refrigerated storage. The formulation consistently maintains viable probiotic [...]

by Folayemi J. Isaac-Bamgboye  , Bukola S. Salami  , Daniel S. Ajewole  and Ireoluwa T. Isaac-Bamgboye

Received: 13 May 2026;  Published: 04 August 2026;  doi: 10.21926/rpn.2603019

The unbalanced nutrient density and low microbiological quality of many complementary foods are still the primary causes of infant malnutrition in poorer countries. In this study, complementary food was produced using blends of grain amaranth, African yam bean, and carrot flour. The resultant complementary food was analysed for proximate, mineral, antinutrients, antioxidant compositions, vitamin C, beta-carotene, microbial properties, and sensory evaluations. Principal component analysis was also used to assess nut [...]

by Dylan J. Stephens  , Evan B. Johnson  and Bradley J. Johnson

Received: 21 February 2026;  Published: 30 July 2026;  doi: 10.21926/rpn.2603018

Berberine is an alkaloid chemical found in plants, including Berberidaceae, Coptis rhizomes, and Hydrastis canadensis. Berberine has been shown to improve insulin sensitivity, promote adipocyte loss, and is associated with higher levels of skeletal muscle protein synthesis. The purpose of this study was to examine berberine’s dose-dependent effects on C2C12 myoblast proliferation and 3T3L1 adipocyte differentiation. Cells were grown out over 3 weeks, and once confluent at 90%, they were treated with berberine to ex [...]

by Neha Bakshi  , Vritti Loomba  and Arvinder S. Soin

Received: 24 February 2026;  Published: 27 July 2026;  doi: 10.21926/rpn.2603017

Dietary and lifestyle choices have considerable effects on skin health, which reflects overall well-being. Nutrition is now a key component in the management and prevention of skin-related issues due to the increasing incidence of dermatological disorders and the growing demand for anti-aging remedies. This review examines the complex relationship between nutrition, diet, and skin aging, with a focus on the functions of probiotics, vitamins, minerals, essential fatty acids, and antioxidants. Evidence suggests that [...]

by Xin Qi  and Richard Tester

Received: 23 March 2026;  Published: 26 July 2026;  doi: 10.21926/rpn.2603016

Excess dietary calories relative to energy expenditure lead to increased body weight, a problem now widely described as an epidemic because of its association with numerous disease states. Although free digestible sugars are to the most extent absorbed relatively easily from foods in healthy individuals, this is not the case for starches; where the physico-chemical properties control the rate and extent of enzymatic hydrolysis in the small intestine. Thus, even when the quantity of starch in a food product is known [...]

by Valentin P. Shichkin  and Oleg V. Kurchenko

Received: 15 February 2026;  Published: 13 July 2026;  doi: 10.21926/rpn.2603015

Thyroid disorders are an actual global health concern requiring diverse therapeutic strategies. Potentilla alba (P. alba), commonly known as White cinquefoil, has been used in folk medicine for its rich composition of microelements and pharmacologically essential phytocompounds. It has now also gained recognition in evidence-based medicine for its potential to treat thyroid dysfunction, particularly hypothyroidism and nodular goiter. However, the complicated composition of P. alba extracts makes it difficult to pre [...]

by Israel Rios-Castillo  , Leslie Landaeta-Díaz  , Karla Santos-Guzmán  , Laura Merelez-Ceuppens  and Alex Brito

Received: 01 January 2026;  Published: 09 July 2026;  doi: 10.21926/rpn.2603014

Climate change, biodiversity loss, and malnutrition are interconnected global challenges that increasingly threaten food security, healthy diets, and environmental sustainability. Current dietary patterns characterized by high consumption of ultra-processed foods have negative environmental impacts, including increased greenhouse gas emissions, water and land use, malnutrition, and biodiversity loss. Sustainable and healthy diets that emphasize plant-based foods, minimize food waste, and promote ecosystem conservat [...]

by Weijie Yi  , Jiamei Lian  and Chao Deng

Received: 20 November 2025;  Published: 09 July 2026;  doi: 10.21926/rpn.2603013

Risperidone is a commonly used antipsychotic drug in juveniles, but with serious metabolic side-effects. Previous evidence suggests that exercise mitigates risperidone-induced hypertriglyceridemia and adipose accumulation, yet the underlying hepatic mechanisms remain unclear. In this study, female juvenile rats were randomly assigned to four groups (n = 8/group): Vehicle + Sedentary, Risperidone (0.9 mg/kg, twice daily) + Sedentary, Vehicle + Exercise (3-hour voluntary access to a running wheel/day), and Risperidon [...]