Specialty Fruit Resources: Processing, Nutritional Value and Food Innovation

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Plant Foods".

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1661

Special Issue Editors


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Guest Editor
College of Enology, Northwest A&F University, Yangling 712100, China
Interests: fruit wines; nutritional compounds; flavor compounds; cultivation techniques; vinification
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
College of Agriculture, Guangxi University, Nanning 530004, China
Interests: fruit quality; signal transduction; gene function; post-harvest storage
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Specialty fruit trees, encompassing a vast array of underutilized, wild and locally adapted species, represent a treasure trove of genetic diversity and unique functional components. Despite their potential, many of these resources remain underexploited due to a lack of systematic characterization, particularly regarding their processing aptitudes. This Special Issue, entitled ‘Specialty Fruit Tree Resources: Processing, Nutritional Value and Food Innovation,’ seeks to address this gap by compiling advanced research that illuminates the entire value chain of these promising fruits.

We welcome contributions that focus on the comprehensive evaluation of processing characteristics, including but not limited to the assessment of rheological properties, thermal stability, drying kinetics, enzymatic susceptibility and the behavior of key components (such as pectins, starches and pigments) during various processing operations. Studies on the development and optimization of novel, mild technologies (e.g., high-pressure processing, microwave-assisted drying and fermentation) are highly encouraged, with an emphasis on how these methods modulate the physicochemical, sensory and nutritional profiles of the final products. Alongside processing, this issue will cover the detailed analysis of nutritional and phytochemical compositions and their associated health benefits. Furthermore, we aim to showcase innovations in transforming these characterized resources into value-added products, such as functional ingredients, stable purees, healthy snacks and natural preservatives. This collection will provide a crucial scientific foundation for the valorization of specialty fruit trees, guiding their sustainable utilization and inspiring the next wave of innovation in the food industry.

Dr. Kekun Zhang
Prof. Dr. Haifeng Jia
Guest Editors

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Keywords

  • specialty fruit trees
  • processing characteristics
  • novel processing technologies
  • bioactive compounds
  • nutritional valorization
  • functional foods
  • food innovation

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Published Papers (2 papers)

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Research

16 pages, 2768 KB  
Article
Cultivar-Dependent Thermal Flesh Breakdown in Apple Associated with Cell Wall Polysaccharide Modification, with Pronounced Effects in Cooking Apple ‘Bramley’s Seedling’
by Mitsuho Nakagomi, Tomomichi Fujita, Saki Sato, Akari Oka, Jong-Pil Chun and Kazuhiro Matsumoto
Foods 2026, 15(8), 1375; https://doi.org/10.3390/foods15081375 - 15 Apr 2026
Viewed by 795
Abstract
Heat-induced softening of apple fruit varies markedly among cultivars; however, the biochemical factors underlying these differences remain incompletely understood. This study investigated the relationship between cell wall modifications and thermal flesh breakdown in three apple cultivars (‘Bramley’s Seedling’, ‘Fuji’, and ‘Toki’). Fruit flesh [...] Read more.
Heat-induced softening of apple fruit varies markedly among cultivars; however, the biochemical factors underlying these differences remain incompletely understood. This study investigated the relationship between cell wall modifications and thermal flesh breakdown in three apple cultivars (‘Bramley’s Seedling’, ‘Fuji’, and ‘Toki’). Fruit flesh samples were heated under controlled conditions and analyzed for changes in texture properties, cell structure, cell wall composition, and molar mass distribution. Heating increased water-soluble pectin in all cultivars, with a markedly greater increase in ‘Bramley’s Seedling’, indicating pronounced pectin solubilization during thermal treatment. A pronounced shift from high- to low-molar-weight polymers in the Na2CO3-soluble fraction was also observed only in ‘Bramley’s Seedling’, suggesting extensive depolymerization of the Na2CO3-soluble pectic polymers. A decrease in hemicellulose and cellulose content following heating was observed exclusively in ‘Bramley’s Seedling’. Consistently, this cultivar exhibited significantly lower gumminess and chewiness compared with the other cultivars. Beyond compositional changes, ‘Bramley’s Seedling’ exhibited severe tissue disintegration and distinctive rheological behavior indicative of extensive cell rupture. In contrast, ‘Fuji’ and ‘Toki’ retained relatively stable cell wall structures and maintained tissue integrity after heating. These findings suggest that cultivar-dependent disassembly of cell wall polysaccharides, particularly pectin depolymerization and solubilization, is strongly associated with heat-induced tissue breakdown. Full article
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23 pages, 2333 KB  
Article
Evaluation of the Winemaking Characteristics of High Anthocyanin Teinturier Grape Varieties (Lines)
by Hongyan Zhang, Xiaoqian Zhang, Yu Deng, Yaoyuan Zhai, Yuanpeng Du, Yulin Fang, Kekun Zhang and Keqin Chen
Foods 2026, 15(2), 340; https://doi.org/10.3390/foods15020340 - 17 Jan 2026
Viewed by 561
Abstract
Teinturier grapes are an important germplasm resource for addressing the insufficient accumulation of anthocyanins in grapes under adverse climatic conditions. To enrich the variety diversity, eight newly bred teinturier grape varieties were used for comparison with the traditional teinturier grape variety “Yan 73”. [...] Read more.
Teinturier grapes are an important germplasm resource for addressing the insufficient accumulation of anthocyanins in grapes under adverse climatic conditions. To enrich the variety diversity, eight newly bred teinturier grape varieties were used for comparison with the traditional teinturier grape variety “Yan 73”. The results showed that A1 wine exhibits high levels of citric and tartaric acids, while the B2 wine showed elevated levels of malic and succinic acids. The C1, B2, and G1 wines showed higher total phenol, anthocyanin, flavonoid, flavan-3-ol, and tannin content. In the free volatile components of C1 wine, α-phellandrene, methyl salicylate, α-Terpineol, β-Myrcene, isoamylol and ethyl acetate were the primary aroma compounds. Meanwhile, the glycosidically bound aroma components of B2 wine were predominantly dominated by nonanal, benzaldehyde, α-terpineol, hexanal, α-phellandrene, and D-limonene. Compared with Y73, B2 and A1 wines have better phenols, while B2, C1 and B5 wines have better flavors, which provides support for the promotion of new varieties. Full article
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