• Development of technological approaches for more efficient and rational use of the plant-derived by-products for the production of innovative food products
• Elaboration of environmentally friendly packaging and coating materials from renewable resources to extend the shelf-life of fresh fruit
• Research on the shelf-life extension of fresh fruit by applying 1-Methylcyclopropene (1-MCP) as a pre-treatment method and the use of ultra-low oxygen (ULO) storage conditions
• A comprehensive examination of physical and chemical properties (firmness, total acids and soluble solids content) and sensory quality of apple fruit
• The accomplishment of plant origin raw material, processed product and by-product microbiological analysis

5 major scientific publications:

• K. Juhnevica-Radenkova, V. Radenkovs, K. Kundzins, D. Seglina: Effect of ozone treatment on the microstructure, chemical composition and sensory quality of apple fruits. Food Science and Technology International 12/2018; 25(2):1-16., DOI:10.1177/1082013218815285
• Radenkovs, T. Püssa, K. Juhnevica-Radenkova, D. Anton, D. Seglina: Phytochemical characterization and antimicrobial evaluation of young leaf/shoot and press cake extracts from Hippophae rhamnoides L. Food Bioscience 06/2018; 24., DOI:10.1016/j.fbio.2018.05.010
• Radenkovs, K. Juhnevica-Radenkova, P. Górnaś, D. Seglina: Non-waste technology through the enzymatic hydrolysis of agro-industrial by-products. Trends in Food Science & Technology 05/2018; 77., DOI:10.1016/j.tifs.2018.05.013
• K. Juhnevica-Radenkova, V. Radenkovs, D. Seglina: Microbiological changes and severity of decay in apples stored for a long-term under different storage conditions. Zemdirbyste 11/2016; 103(103 4):391-396., DOI:10.13080/z-a.2016.103.050
• K. Juhnevica-Radenkova, V. Radenkovs, D. Seglina: Influence of 1-MCP treatment and storage conditions on the development of microorganisms on the surface of apples grown in Latvia. Zemdirbyste 05/2016; 103(103 2):215-220., DOI:10.13080/z-a.2016.103.028

The 5 major popular scientific publications:

• K. Juhņeviča-Radenkova, I. Drudze. Ābolu gatavības pakāpes noteikšana. (Piel. “Augļu un dārzeņu uzglabāšanas knifi”) (Determination of apple maturity stage) (Annex “Fruit and vegetable storage tricks”). AgroTops Nr.8 (2019), 3.-6.lpp. ISSN 1407-5164.
• K. Juhņeviča-Radenkova, I. Drudze. Ābolu uzglabāšanas tehnoloģijas. (Piel. “Augļu un dārzeņu uzglabāšanas knifi”) (Apple storage technologies) (Annex “Fruit and vegetable storage tricks”). AgroTops Nr.8 (2019), 6.-12.lpp. ISSN 1407-5164.
• K. Juhņeviča-Radenkova. Aizvadītās sezonas ābolu glabāšanas īpatnības (Last season's apple storage peculiarities). AgroTops. Nr.6 (2018), 77.-78.lpp. ISSN 1407-5164.
• K. Juhņeviča-Radenkova. Ābolu gatavības noteikšanas metodes (Methods for the determination of maturity stage of apples). AgroTops. Nr.8 (2017), 72.-73.lpp. ISSN 1407-5164. 
• K. Juhņeviča-Radenkova. Ko dod augļu glabāšana kontrolētā atmosfērā? (The benefits of storing fruit in a controlled atmosphere). AgroTops. Nr.10 (201), 71.-74.lpp ISSN 1407-5164.