Food Science and Agriculture: Research Highlights Vol. 8

Sprouted Legumes for Sustainable Nutrition and Food Security: A Critical Narrative Review of Nutritional Gains, Safety Constraints and Translation Pathways

Mallela Prem Kumar — 2026-08-13

Legumes are central to affordable plant-based diets and low-input cropping systems, yet their nutritional contribution is constrained by limited digestibility, antinutritional compounds, long cooking times and uneven consumer acceptance. Germination has therefore attracted renewed interest as a comparatively simple bioprocess that activates endogenous enzymes, remodels seed reserves and permits the production of fresh sprouts or shelf-stable sprouted ingredients. This critical narrative review evaluates whether sprouted legumes can make a defensible contribution to sustainable nutrition and food security. Literature was selected through transparent searches of accessible scholarly sources, with emphasis on peer-reviewed studies of nutritional composition, digestibility, mineral bioaccessibility, bioactive compounds, food safety, product development and sustainability-relevant implementation.

The strongest evidence indicates that sprouting commonly lowers raffinose-family oligosaccharides and can reduce phytate, protease inhibitors and selected tannins, while increasing free amino acids, certain vitamins and extractable phenolics. These effects are not universal. Their magnitude and direction depend on species, cultivar, seed history, germination time, temperature, light, water management and downstream cooking or drying. In vitro protein digestibility often improves, but changes in mineral bioaccessibility and antioxidant activity are inconsistent, and human trials that connect compositional changes to clinically meaningful outcomes remain scarce. Nutritional optimisation also creates a food-safety tension: the warm, humid conditions that support germination can amplify seed-borne pathogens, while fresh sprouts are perishable and are often consumed with little or no heat treatment. Product studies show promise for sprouted flours in breads and other foods, but excessive inclusion or uncontrolled enzyme activity can impair dough handling, texture, flavour and shelf life.

Sprouted legumes can support food availability, dietary utilisation and value-chain diversification when germination is matched to local infrastructure and safety capacity. Their sustainability cannot be inferred from the agronomic advantages of legumes alone; water use, sanitation, drying energy, refrigeration, losses and packaging must be evaluated. The most credible pathway is therefore not universal promotion of raw sprouts, but context-specific deployment of standardised short germination, validated microbial controls and culturally acceptable cooked or shelf-stable products.

Bioactive Compounds in Foods: Classification, Bioavailability and Health Effects: A Critical Narrative Review

C. Raja Babu — 2026-08-13

Foods contain, beyond their macronutrient and micronutrient content, a heterogeneous group of secondary plant metabolites and animal-derived molecules collectively termed bioactive compounds, including polyphenols, carotenoids, glucosinolates, phytosterols, bioactive peptides and long-chain polyunsaturated fatty acids. Interest in these compounds has grown substantially as epidemiological, mechanistic and clinical research has accumulated, yet the evidence base remains fragmented across compound classes, disease outcomes and study designs, and existing reviews tend to address single compound families or narrow technological applications rather than integrating mechanism, bioavailability and clinical outcome across the field as a whole. This critical narrative review synthesises current literature on the classification, dietary sources, bioavailability, gut microbial metabolism and principal health associations of the major classes of food-derived bioactive compounds, together with the influence of food processing and delivery technologies on their retention and systemic exposure. Literature was identified through targeted searches of biomedical and food-science databases and citation searching of recent reviews, appraised for methodological quality and relevance, and synthesised thematically rather than as a study-by-study catalogue. The reviewed evidence indicates consistent, moderate-strength associations between polyphenol-rich whole foods and improvements in blood pressure and lipid parameters, between carotenoid intake and reduced risk of selected cancers and cardiovascular disease, and between soy isoflavone intake and modestly reduced cancer incidence, although effect sizes are frequently attenuated or absent for isolated extracts, for hard clinical endpoints and for cognitive and vascular outcomes. Substantial heterogeneity in dosing, formulation, trial duration and population characteristics limits the strength of causal inference across nearly all compound classes. Bioavailability, gut microbial biotransformation and food matrix effects emerge as recurring determinants of inconsistent findings across the literature. The review identifies methodological and mechanistic gaps that constrain translation of laboratory and epidemiological findings into dietary guidance and proposes priorities for standardised dosing, longer intervention periods and matrix-aware trial design.

Functional Foods for Disease Prevention: Evidence, Emerging Technologies and Future Perspectives

C. Raja Babu — 2026-08-13

Functional foods occupy an increasingly influential but scientifically unsettled space between conventional nutrition, food technology and preventive health. The category includes naturally bioactive foods, fortified or enriched products, fermented foods, biofortified crops and food matrices engineered to deliver physiologically active compounds. This critical narrative review evaluates how convincingly such foods prevent disease, how emerging technologies are changing their design and assessment, and which scientific, regulatory and social conditions must be met for future innovation to generate public value. Literature published from 1990 to 21 May 2026 was identified through live searches of PubMed/MEDLINE and PubMed Central, supplemented by targeted scholarly web searching, citation tracking and verification through DOI and official journal landing pages. Evidence was appraised according to study design, matrix fidelity, endpoint relevance, consistency, risk of bias, generalisability and alignment between mechanistic and clinical findings.

The strongest evidence concerns functional components embedded in recognisable dietary patterns or conventional foods, particularly whole grains, viscous cereal fibres, nuts, legumes, plant sterol-fortified foods and selected fermented foods. Benefits are generally more convincing for intermediate cardiometabolic outcomes than for hard disease endpoints, and causal confidence declines when isolated compounds, short interventions, surrogate biomarkers or highly selected populations dominate the evidence. For colorectal cancer prevention, fibre-rich whole foods are supported more consistently than concentrated phytochemical supplements. Probiotic, prebiotic and fermented-food effects remain product-, strain-, substrate- and host-specific. Food-matrix structure, processing, dose, background diet and inter-individual metabolism frequently determine whether biochemical potential becomes human benefit.

Foodomics, artificial intelligence, non-thermal processing, encapsulation, nano-delivery, precision fermentation, genome editing and three-dimensional food printing may improve discovery, stability, bioavailability and personalisation. Yet most technology-centred evidence remains upstream of clinical validation, while safety assessment, interoperability, transparent algorithms, affordability, cultural fit and regulatory substantiation lag behind technical capability. Future progress requires a shift from ingredient-centred novelty towards matrix-aware, clinically anchored and equity-sensitive innovation. Functional foods can contribute to disease prevention, but they should complement rather than displace high-quality dietary patterns and structural policies that improve access to nutritious foods.

Development and Nutritional–Sensory Evaluation of Noodles Enriched with Amaranth Seed Flour

Priyanshu Tripathi — 2026-08-13

Pseudocereals can complement conventional cereals by improving the nutritional quality of foods. Amaranth is a pseudocereal with a bland taste, ease of cooking, and comparatively high contents of protein, fat, fibre, energy, and minerals; however, it remains underutilized and consumed in relatively few locations. This study aimed to develop protein-enriched noodles by substituting wheat flour with amaranth seed flour and to evaluate the sensory and nutritional characteristics of the resulting products. Amaranth seed flour was incorporated at 20%, 30%, 40%, 50%, 60%, and 70%. Sensory evaluation was conducted using a nine-point hedonic scale, and the proximate and mineral compositions of the control and selected flour mixture were assessed. Among the enriched formulations, noodles containing 50% amaranth seed flour received the highest overall acceptability score (7.70 ± 0.10), whereas the 70% formulation received the lowest score (6.67 ± 0.25). The 50% formulation showed the most favourable sensory characteristics among the fortified treatments. Crude protein increased from 12.07 g in the control to 13.22 g in the flour mixture. The enriched flour mixture also showed higher crude fat, ash, fibre, calcium, iron, and phosphorus contents, although carbohydrate and energy values were lower than those of the control. These findings indicate that amaranth seed flour can be incorporated into noodles to improve nutritional quality while retaining acceptable sensory properties.