The intellectual roots of green chemistry stretch back further than many readers might expect. The editorial traces the discipline’s origins to Rachel Carson’s 1962 book Silent Spring, which alerted the public to the unintended consequences of widespread chemical use, particularly pesticides accumulating in food chains and ecosystems. That early cautionary tale gradually matured into a constructive engineering philosophy. In 1998, Paul Anastas and John Warner codified the field’s practical framework in their Twelve Principles of Green Chemistry, a set of design guidelines covering everything from waste prevention and atom economy to the use of safer solvents and renewable feedstocks. What began as a set of aspirational rules has, over the past decades, become a toolkit that academia and industry apply daily, yielding safer reagents and solvents, reduced emissions, effective catalysis, renewable raw materials, circular strategies for chemicals and materials, cleaner energy and water, and contributions to global climate change mitigation.

Perhaps the most striking theme in the inaugural editorial is the discipline’s pivot from reactive cleanup to predictive design. Green chemistry, the authors argue, is increasingly embracing computational and quantitative approaches that embed sustainability at the earliest stages of research and development, long before a single gram of material is synthesized. Modelling tools and thermodynamic insight can now guide the selection of safer solvents, including emerging classes such as deep eutectic systems, and inform the rational design of catalytic and reaction pathways before extensive experimental screening begins. This represents a fundamental shift in how chemists work: instead of testing dozens of solvent systems in the laboratory and discarding the failures, researchers can screen candidates in silico and advance only the most promising, least hazardous options to the bench.

Computer-aided process design takes this logic to the scale of entire manufacturing routes. These frameworks integrate environmental metrics such as the E-factor, the ratio of waste generated to product obtained, and energy consumption directly into synthetic planning, allowing chemists and chemical engineers to optimize routes for reduced waste and improved efficiency. In parallel, in silico toxicology, quantitative structure-activity relationship modeling, and machine learning approaches enable early-stage screening of hazards and exposure risks, aligning chemical innovation with regulatory requirements and societal expectations before products reach the market. The editorial describes this convergence as a movement from reactive mitigation toward predictive, design-oriented strategies for sustainability, a reframing that could reshape how the chemical industry approaches everything from pharmaceutical synthesis to commodity materials.

The journal’s declared scope is remarkably broad, reflecting green chemistry’s position as an interdisciplinary crossroads. Among the priority topics are chemical degradation, including the breakdown of antibiotics, fertilizers, dyes, and chemical residues using advanced oxidation methods and controlled degradation under specific environmental conditions. Chemical recycling receives its own emphasis, spanning molecular-level processing, the recovery of precious metals from electronic waste, and technologies such as pyrolysis, gasification, depolymerization, and solvolysis. Waste prevention and management covers source reduction, on-site treatments like neutralization, filtration, precipitation, and detoxification, responsible disposal, and even digital inventory systems designed to prevent chemical stockpiling and wastage in laboratories and storerooms.

Circular economy principles feature prominently throughout the scope. The journal invites work on atom economy, waste valorisation, and the design of biodegradable materials, alongside energy efficiency in chemical manufacturing and application. That last category includes process optimization, energy-efficient manufacturing techniques such as microwave-assisted, photochemical, and flow chemistry reactions, and the integration of computational modeling to reduce carbon footprints and manufacturing costs. Green catalysis forms another pillar, encompassing biocatalytic, enzyme-assisted, nanocatalytic, photocatalytic, and organocatalytic reactions, as well as energy-efficient and highly selective heterogeneous catalysts and the emerging field of predictive catalysis. Green synthesis topics include single-step reactions, the use of bio-based materials, plant extracts, natural products, and microorganisms, and cost-effective, environmentally friendly manufacturing processes that minimize energy consumption.

Renewable resources and safer chemicals round out the scientific agenda. The journal seeks research on biomass and agricultural waste as feedstocks, non-depletable raw materials, bioplastics, biofuels, and alternatives to fossil fuels. On the safety side, it calls for computational approaches to designing safer chemicals, the substitution of traditional toxic solvents with safer alternatives, and strategies to avoid bioaccumulation and environmental persistence. Sustainable chemistry topics extend to reducing greenhouse gas emissions, data-driven sustainability metrics, and life-cycle management that follows materials from raw material extraction through manufacturing, usage, and disposal. The editorial also emphasizes systemic thinking, integrating environmental, economic, and social factors into chemical manufacturing, and highlights sustainable materials and products designed to be benign by design, including reclaimed materials, compostable packaging, plant-based fibres, and eco-friendly consumer goods.

Notably, the journal’s scope extends beyond the laboratory bench into policy, education, and innovation. The editorial lists safer workplaces, accident prevention, and real-time analysis for pollution prevention among its interests, acknowledging that green chemistry’s impact depends as much on how chemicals are handled and regulated as on how they are synthesized. The editorial board, which brings together researchers and practitioners from across the breadth of the field, will handle manuscripts, recommend expert reviewers, advocate rigorous and constructive peer review, identify emerging directions for guest-edited Topical Collections, and promote the journal within professional communities. The board is expected to expand, and the journal welcomes new members who wish to contribute to its development.

The journal’s stance on what counts as publishable science is deliberately inclusive. The editors state that Discover Green Chemistry welcomes both breakthrough advances and well-validated incremental improvements, arguing that each contribution plays a pivotal role in the sustainable progress of the field. This is a meaningful position in a publishing landscape that often privileges novelty over reliability. Incremental improvements, such as a modestly greener solvent swap or a slightly more efficient catalyst, may lack headline appeal, but they are precisely the changes that accumulate into industrial transformation. The journal accepts full-length research articles, brief communications, comprehensive reviews, perspectives, and case studies, and it commits to publishing work that is not only innovative but also credible, scalable, and measurable in its sustainability impact.

The launch also carries a broader significance for open science. As a fully open access journal, Discover Green Chemistry makes its content freely available to researchers, industry practitioners, policymakers, and educators worldwide, removing paywalls that can slow the diffusion of sustainable technologies, particularly in developing economies where green chemistry solutions may be most urgently needed. The journal explicitly encourages submissions that address the United Nations Sustainable Development Goals, tying chemical research to global targets on clean water, affordable energy, climate action, and responsible production. Whether the new journal can help accelerate the transition from green chemistry as principle to green chemistry as default practice will depend on the community it attracts, but its inaugural editorial makes clear that the ambition is nothing less than a redesign of how molecules, materials, and processes are conceived from the very first sketch on the drawing board.

Subject of Research: The launch and scope of the open access journal Discover Green Chemistry

Article Title: Inaugural editorial for Discover Green Chemistry

Article References: Mahadadalkar, M. A., Choutipalli, V. S. K., & Bharti, R. (2026). Inaugural editorial for Discover Green Chemistry. Discover Green Chemistry, 1(1), Article 1. https://doi.org/10.1007/s44509-026-00005-3

Image Credits: AI Generated

DOI: 10.1007/s44509-026-00005-3

Keywords: green chemistry, Discover Green Chemistry, open access publishing, sustainability, Twelve Principles of Green Chemistry, chemical recycling, green catalysis, computational chemistry, renewable feedstocks, circular economy, safer solvents, Sustainable Development Goals

A comprehensive new review published in Discover Green Chemistry argues that a quiet revolution is underway. Researchers led by Xinli Tang, Huayue Sun, and Jiankui Sun of North China University of Science and Technology systematically survey two decades of progress in chemically catalyzing the conversion of biomass, especially non-edible lignocellulosic material such as straw, wood, and agricultural waste, into lactic acid. Their analysis organizes the field into three competing routes: alkaline catalysis, acid catalysis, and an emerging family of photocatalytic and photothermal approaches that harness sunlight to drive the reaction at room temperature. Each route, the authors conclude, shares a common reaction network but differs in which step limits the overall rate, a unifying insight that could accelerate catalyst design across the entire field.

That shared network begins with sugars. Glucose, a six-carbon aldose, must first be isomerized into fructose, a transformation that Lewis acid sites catalyze through an intramolecular hydride shift known as the Lobry de Bruyn–van Ekenstein rearrangement. Fructose then undergoes retro-aldol cleavage, splitting into two three-carbon fragments, dihydroxyacetone and glyceraldehyde. These trioses dehydrate to pyruvaldehyde, which finally rearranges into lactic acid via a 1,2-hydride shift. Because fructose skips the isomerization step, it consistently outperforms glucose under identical conditions, while xylose, a five-carbon sugar, inevitably sacrifices part of its carbon skeleton to glycolic or formic acid, capping its lactic acid yield. The review reports yields exceeding 70 percent for glucose and up to 97 percent under optimized acid catalysis, but warns that raw lignocellulose typically delivers less than 50 percent because the recalcitrant lignin matrix blocks catalyst access and poisons active sites.

Alkaline catalysis, the oldest chemical route, exploits strong bases such as sodium and potassium hydroxide to cleave carbon-carbon bonds under hydrothermal conditions at or above 473 kelvin. Early work by Yan and colleagues showed that calcium and barium hydroxides form transition complexes with sugar intermediates, promoting selective C3–C4 bond cleavage, and that cellulose and starch could be converted directly to lactic acid in yields near 19 percent. More strikingly, Li’s group later achieved a 95.4 percent lactic acid yield from glucose at room temperature under anaerobic conditions, using barium hydroxide both as catalyst and as a reactant that traps the product as barium lactate. Yet the route carries a heavy price: high alkali concentrations generate salt waste, corrosion, and costly neutralization steps, and homogeneous bases cannot be recycled at all, making the economics unattractive for large-scale production.

Heterogeneous base catalysts attempt to resolve these problems. Layered double hydroxides of magnesium and aluminum, for example, enabled Albuquerque and colleagues to convert hydroxyacetone to lactic acid with 100 percent selectivity at just 40 degrees Celsius, using a recyclable solid base that eliminates neutralization entirely. Copper-based systems have proven particularly versatile: CuO supported on zirconia achieved complete glycerol conversion with 94.6 percent lactic acid selectivity, while copper oxide loaded on magnesia delivered a 70 percent yield from glucose at a relatively mild 393 kelvin. Glycerol itself, a cheap byproduct of biodiesel production, has emerged as a star feedstock, with noble-metal and copper catalysts converting it to lactic acid at yields of 80 to 96 percent, its simple C3 structure sidestepping the isomerization bottleneck that plagues six-carbon sugars.

Acid catalysis, however, is where the review places its strongest bet. Lewis acid zeolites, metal oxides, and rare-earth catalysts convert carbohydrates directly in water without the neutralization burden of alkaline chemistry. Tin-substituted beta zeolite, whose isolated tetrahedral Sn4+ sites act as water-tolerant Lewis acids, achieved a 67.1 percent lactic acid yield from glucose, while hierarchical zirconium zeolites reached 67.9 percent from xylose. Dealuminated ZSM-5 supported with erbium pushed yields to 69.1 percent by suppressing the formation of humins, the insoluble carbonaceous byproducts that plague sugar conversion. Rare-earth metals proved even more striking: erbium chloride delivered lactic acid from cellulose at yields up to 91 percent, and ytterbium chloride converted sugarcane bagasse to lactic acid within 15 minutes. Computational studies showed that heavier lanthanide ions lower the energy barrier for the critical C3–C4 bond cleavage, explaining their exceptional activity.

The most eye-catching numbers, though, come from the newest branch of the field: photocatalysis and its hybrid cousin, photothermal catalysis. Cao and colleagues developed a nitrogen-doped titanium dioxide catalyst that produced lactic acid from sugars with a 98.9 percent yield at just 60 degrees Celsius within 30 minutes under visible light. Huang’s team engineered a highly crystalline carbon nitride with structural oxygen that converted glucose at room temperature in 50 minutes, while Liu’s triazole-modified carbon nitride delivered yields of 85.5 to 98.3 percent from various sugars with 98.6 percent selectivity. Life cycle assessments attached to these systems are remarkable: the fluorine-doped carbon nitride route was calculated to generate only 0.7 kilograms of carbon dioxide equivalent per kilogram of lactic acid, roughly one-sixth of the petrochemical route, with an 87.8 percent reduction in fossil resource depletion.

Photocatalysis has historically been hobbled by poor selectivity. Mechanistic work by Zhang and colleagues revealed why: on pristine titanium dioxide, pyruvaldehyde preferentially follows low-barrier proton-coupled electron transfer pathways, producing unwanted C3 oxygenates, while the selective hydride shift to lactic acid faces a barrier of 1.22 electron volts. The solution proved elegant. By introducing oxygen vacancies that create Lewis acid sites and adding plasmonic gold nanoparticles that convert absorbed light into localized heat, the researchers steered the reaction toward the desired Cannizzaro-type pathway, achieving more than 90 percent lactic acid selectivity, a 3.4-fold improvement. Similar atomic-level heterojunctions, such as copper–sulfur moieties embedded in a cadmium zinc sulfide host, boosted glycerol conversion tenfold with selectivity above 95 percent, demonstrating that rational catalyst architecture can overcome the intrinsic kinetic limitations of light-driven chemistry.

Economics and durability remain the field’s stubborn obstacles. A landmark techno-economic assessment based on a 50,000-ton-per-annum plant suggested that erbium chloride-catalyzed glucose conversion could deliver an internal rate of return above 20 percent, but only if the expensive rare-earth catalyst is efficiently recovered and reused. Metal leaching from zeolites in hot water, carbonaceous fouling of oxide surfaces, and photocorrosion of semiconductors all erode catalyst lifetimes, and the review proposes a stability ranking that places zirconia and niobia at the top, followed by tin zeolites, carbon nitride photocatalysts, and layered double hydroxides. The authors argue that acid catalysis currently offers the best near-term balance of yield, feedstock flexibility, and practicality, while photocatalysis represents the most sustainable long-term option, pending breakthroughs in quantum efficiency and compatibility with real, untreated biomass.

What emerges from this sweeping analysis is a field in transition, moving from model sugars toward genuine waste streams, from precious metals toward abundant copper, zinc, and aluminum, and from brute-force heating toward sunlight-driven, carbon-negative chemistry. If researchers can marry the anti-leaching catalyst designs and standardized regeneration protocols the review calls for with the ambient-condition promise of photothermal systems, lactic acid could shift from a fermentation commodity to a cornerstone of the sustainable bioeconomy, and the biodegradable plastics built from it may finally compete with, and replace, the petrochemical polymers that now choke the planet.

Subject of Research: Chemo-catalytic conversion of biomass into lactic acid using alkaline, acid, and photocatalytic processes

Article Title: Research progress in the preparation of lactic acid from biomass by chemical catalytic process

Article References: Tang, X., Sun, H., Shi, Q., Zheng, D., Xie, J., & Sun, J. (2026). Research progress in the preparation of lactic acid from biomass by chemical catalytic process. Discover Green Chemistry, 1(1), Article 36. https://doi.org/10.1007/s44509-026-00038-8

Image Credits: AI Generated

DOI: 10.1007/s44509-026-00038-8

Keywords: lactic acid, biomass, catalysis, Lewis acid, photocatalysis, photothermal catalysis, polylactic acid, lignocellulose, zeolites, rare-earth catalysts, green chemistry, bioplastics