tatpipТехника и технология пищевых производствFood Processing: Techniques and Technology2074-94142313-1748Кемеровский государственный университет10.21603/2074-9414-2026-1-2619XDHTZStatpip-16Research ArticleСтатьиОценка антиоксидантной активности листьев деревьев для дальнейшего использования в качестве экологичных консервантовTree Leaves as Environmentally Friendly Preservatives: Evaluation of Antioxidant Activityhttps://orcid.org/0000-0001-6627-2293ВарданянЛ. Р.VardanyanL. R.

Варданян Луиза Размиковна

Горис

Luiza R. Vardanyan

Goris

luizavardanyan211@gmail.comhttps://orcid.org/0009-0004-4747-7778ТоросянН. С.TorosyanN. S.

Торосян Нвер Суренович

Ереван

Nver S. Torosyan

Yerevan

https://orcid.org/0000-0002-2145-2941ОганесянН. Р.HovhannisyanN. R.

Оганесян Нелли Ремиковна

Ереван

Nelli R. Hovhannisyan

Yerevan

https://orcid.org/0000-0002-5121-8953ТоросянГ. О.TorosyanG. H.

Торосян Гагик Оганесович

Горис;

Ереван

Gagik H. Torosyan

Goris;

Yerevan

Горисский государственный университетАрменияGoris State UniversityArmeniaЦентр Эколого-ноосферных исследований НАН РА (Экоцентр ГНКО)АрменияCenter for Ecological and Noosphere Research of the Armenian National Academy of Sciences (Ecocenter SNCO)ArmeniaНациональный политехнический университет АрменииАрменияNational Polytechnic University of ArmeniaArmeniaГорисский государственный университет; Научно-технологический центр органической и фармацевтической химии НАН РААрменияGoris State University; Scientific and Technological Center for Organic and Pharmaceutical Chemistry of the Armenian National Academy of SciencesArmenia2026170820265611625Copyright © Варданян Л.Р., Торосян Н.С., Оганесян Н.Р., Торосян Г.О., 20262026Варданян Л.Р., Торосян Н.С., Оганесян Н.Р., Торосян Г.О.Vardanyan L.R., Torosyan N.S., Hovhannisyan N.R., Torosyan G.H.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.fptt.ru/jour/article/view/16

Окислительная порча свежих продуктов питания приводит к значительным экономическим потерям в пищевой промышленности. Активная упаковка с природными антиоксидантами представляет перспективную альтернативу синтетическим консервантам для продления срока хранения и обеспечения безопасности потребителей. Растущие регулятивные ограничения на синтетические антиоксиданты обусловливают необходимость разработки природных аналогов со статусом GRAS. Цель исследования – сравнительная оценка антиоксидантной активности экстрактов листьев древесных пород Республики Армения для применения в технологиях активной упаковки.Исследованы этилацетатные экстракты листьев Quercus robur, Q. iberica, Salix alba и Lycium barbarum, собранных в период полной вегетации на территории Республики Армения. Антиоксидантные свойства оценивали кинетическим методом окисления кумола с одновременным определением суммарного содержания антиоксидантов (f [InH]) и константы скорости реакции с пероксидными радикалами (k7 ). Метод позволяет провести комплексную характеристику механизмов антиоксидантного действия.Выход экстрактов варьировался от 3,4 ± 0,3 % (S. alba) до 6,8 ± 0,3 % (Q. iberica). Максимальное содержание антиоксидантов установлено для Q. iberica (1,34×10–4 моль/л). Наибольшую реакционную способность проявил экстракт S. alba (k7 = 1,01×105 л/моль·с). Пересчет в DPPH-эквиваленты показал активность 3,5–13,4 мкг/мл, сопоставимую с зеленым чаем (8–20 мкг/мл) и превосходящую многие фракции розмарина. Отсутствие корреляции между содержанием и активностью антиоксидантов обусловлено структурными различиями фенольных компонентов и их реакционными механизмами.Экстракты древесных пород Республики Армения демонстрируют высокую антиоксидантную активность при низкой стоимости сырья (5–10 долл./кг против 15–50 долл./кг коммерческих антиоксидантов), что обосновывает их применение как экономически эффективной и экологически устойчивой альтернативы импортным антиоксидантам для пищевой промышленности.

Oxidative spoilage of fresh food products results in significant economic losses in the food industry. Active packaging with natural antioxidants is a promising alternative to synthetic preservatives: it extends shelf life and provides consumer safety. The growing regulatory restrictions on synthetic antioxidants necessitate the development of natural analogs with GRAS status, i.e., generally recognized as safe. This study compared the antioxidant activities of different leaf extracts from Armenian tree species for active packaging prospects.Leaves of Quercus robur, Quercus iberica, Salix alba, and Lycium barbarum were collected during the full growing season in the Republic of Armenia. Their antioxidant properties were assessed using the kinetic method of cumene oxidation, which involved total antioxidant content (f [InH]) and the reaction rate constant with peroxide radicals (k7 ). This method provided a comprehensive description of the antioxidant mechanisms. The extract yields ranged from 3.4 ± 0.3% (S. alba) to 6.8 ± 0.3% (Q. iberica). The highest antioxidant content belonged to Q. iberica (1.34×10–4 mol/L) while the highest reactivity belonged to the S. alba extract (k7 = 1.01×105 L/mol·s). In DPPH equivalents, the antioxidant activity was 3.5–13.4 μg/mL, which was similar to that of green tea (8–20 μg/mL) and superior to rosemary fractions. The lack of correlation between the antioxidant content and the activity was due to the structural differences in the phenolic components and their reaction mechanisms.The ethyl acetate extracts of Armenian wood species demonstrated high antioxidant activity at a low cost of raw materials ($5–10/kg vs. $15–50/kg of commercial antioxidants), which makes them a cost-effective and environmentally sustainable alternative to imported antioxidants.

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The authors declare that there are no conflicts of interest present.