INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
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2024
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IF 5
You Luo,Ruling Tang,Han Qiu,Angxin Song
Rosa roxburghii Tratt fruits (RRT) exhibit extremely high nutritional and medicinal properties due to its unique phytochemical composition. Probiotic fermentation is a common method for processing fruits. Variations in the non-volatile metabolites and bioactivities of RRT juice caused by different lactobacilli are not well understood. Therefore, we aimed to profile the non-volatile components and investigate the impacts of L. plantarum fermentation (LP) and L. paracasei fermentation (LC) on RRT juice (the control, CG). There were both similarities and differences in the effects of LP and LC on RRT juice. Both of the two strains significantly increased the content of total phenolic, total flavonoid, and some bioactive compounds such as 2-hydroxyisocaproic acid, hydroxytyrosol and indole-3-lactic acid in RRT juice. Interestingly, compared with L. paracasei , L. plantarum showed better ability to increase the content of total phenolic and these valuable compounds, as well as certain bioactivities. The antioxidant capacity and α-glucosidase inhibitory activity of RRT juice were notably enhanced after the fermentations, whereas its cholesterol esterase inhibitory activity was reduced significantly. Moreover, a total of 1466 metabolites were identified in the unfermented and fermented RRT juices. There were 278, 251 and 134 differential metabolites in LP vs CG, LC vs CG, LC vs LP, respectively, most of which were upregulated. The key differential metabolites were classified into amino acids and their derivatives, organic acids, nucleotides and their analogues, phenolic acids and alkaloids, which can serve as potential markers for authentication and discrimination between the unfermented and lactobacilli fermented RRT juice samples. The KEGG enrichment analysis uncovered that metabolic pathways, purine metabolism, nucleotide metabolism and ABC transporters contributed mainly to the formation of unique composition of fermented RRT juice. These results provide good coverage of the metabolome of RRT juice in both unfermented and fermented forms and also provide a reference for future research on the processing of RRT or other fruits.
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JOURNAL OF FOOD BIOCHEMISTRY
·
2024
·Vol. 2024
·期 1
·3900785
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IF 3.5
Wei Ren,Jian Xu,Yongping Zhang,Yanyan Miao,Yao Liu
The aim of this study is to investigate efficient, cost-effective, and high-quality drying technologies for Rosa roxburghii Tratt. Five drying methods—hot air drying (HAD), microwave drying (MD), vacuum drying (VD), microwave vacuum drying (MVD), and freeze vacuum drying (FVD), were employed to dry Rosa roxburghii Tratt. The study focused on evaluating drying characteristics, colors, texture and structure, and microstructure, as well as the content of active ingredients and antioxidant activity of Rosa roxburghii Tratt. The results of drying kinetics indicated that the Wang and Singh model was the most suitable for FVD, while the Page model was optimal for the other four drying methods. Rosa roxburghii Tratt subjected to HAD exhibited the highest energy consumption per unit but the lowest ΔE and the highest TFC. The microstructure of Rosa roxburghii Tratt under different drying methods was analyzed. Rosa roxburghii Tratt dried using MD experienced serious cell rupture, resulting in a large loss of active ingredients and the worst antioxidant ability, but it had the fastest drying rate. On the other hand, Rosa roxburghii Tratt dried under VD had the microstructure with the least pore space, leading to slower drying speed and the highest total polyphenol content. Rosa roxburghii Tratt dried using MVD had the least hardness and chewiness, with slightly better Δ E and active ingredient content compared to MD. FVD Rosa roxburghii Tratt took the longest time to dry, with the greatest Δ E difference, hardness, and chewiness, but it had the highest Vitamin C content and the most powerful antioxidant ability. Principal component analysis (PCA)–entropy weighting method was used to provide comprehensive scores for the different drying methods, with FVD, HAD, VD, MVD, and MD were 0.8107, 0.7037, 0.4499, 0.2746, and 0.0586 respectively. Through comprehensive analysis, we demonstrated that the quality of Rosa roxburghii Tratt obtained via FVD and HAD is satisfactory. Additionally, HAD is characterized by its economic efficiency and convenience, providing valuable insights for the industrial production of Rosa roxburghii Tratt drying.
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FOOD RESEARCH INTERNATIONAL
·
2025
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IF 8
Mingxiu Long,Hui Wang,Fang Zhang,Yaoqi Ran,Yongfu Li,Jingwen Luo,Zhaojun Chen,Zhuxi Tian,Shuming Tan,Xiong Liu
Rosa roxburghii Tratt fruit polyphenols (RP) possess antioxidant, anti-inflammatory, and immunomodulatory properties, showing potential for ulcerative colitis (UC) treatment. However, their efficacy is limited by bioavailability and targeting efficiency. To address this, RP were encapsulated into acylated chitosan-crosslinked carboxymethyl konjac glucomannan (ACs-CKGM) nanogel (RPNG). Experimental results demonstrated that RPNG significantly enhanced intestinal barrier function by upregulating tight junction proteins (ZO-1, Occludin and Claudin-3) and mucus secretion (MUC2). It effectively mitigated oxidative stress by restoring antioxidant enzymes (SOD, GSH-Px and CAT) while reducing MPO, COX-2 and iNOS activation. Through integrated ELISA, western blot, and transcriptomic analyses, we emonstrated that RPNG specifically inhibited PI3K/Akt/mTOR and NF-κB signaling pathways, decreasing inflammatory cytokines (e.g., TNF-α, IL-6) while increasing anti-inflammatory mediators (e.g., IL-10). Gut microbiome analysis showed RPNG reversed DSS-induced dysbiosis by enriching beneficial bacteria (e.g., Muribaculum sp.) and suppressing pathogens (e.g., Escherichia coli ). These findings highlight RPNG as a novel targeted strategy for UC management, supported by multi-omics mechanistic insights.
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FOOD HYDROCOLLOIDS
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2025
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IF 12.4
Han Qiu,Angxin Song,You Luo
Rosa roxburghii Tratt fruits are rich in polysaccharides. Two novel polysaccharides, RRTP-1 and RRTP-2, were purified and characterized as pectin using HPLC, FTIR, GC-MS, and NMR analysis. RRTP-1 was primarily composed of homogalacturonan (HG), featuring a linear main chain with various branching structures including galactose, glucose, arabinose, and mannose residues. RRTP-2 was also a highly branched HG with significant contributions from galactose, rhamnose and arabinose. Compared to RRTP-2 (262.35 kDa, DE 22.03 %), RRTP-1 exhibited a lower molecular weight (179.05 kDa) and a higher degree of esterification (DE, 41.10 %). Both of them were efficiently utilized by gut microbes to produce butyric acid and lower pH. Their structural differences led to distinct gut microbiota composition. RRTP-1 selectively enriched Phocaeicola , Faecalibacterium , and Bifidobacterium , whereas RRTP-2 selectively enriched Limosilactobacillus , Lachnospira , and Coprococcus . Despite structure differences in RRTP-1 and RRTP-2, the keystone microbes and enzymes involved in their degradation exhibited similarities. Bacteroides and Megamonas emerged as dominant contributors. Glycoside hydrolases and carbohydrate esterases were identified as the primary enzymes facilitating their breakdown. These findings suggest that the fine structure of pectin exerts a selective effect on fermenting consortia. Furthermore, both RRTP-1 and RRTP-2 show promise as effective prebiotics.
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Food Quality and Safety
·
2026
·
IF 4.9
Lu Yanling,Bi Huimin,Feng Yiting,Yang Jiaojiao,Han Long,Guo Lei,Fan Fangyu
ObjectivesTo enhance the stability of proliposomes co-encapsulating Rosa roxburghii Tratt seed oil (RSO) and β-carotene (βC), sodium alginate (SA) and chitosan (CS) were utilized for bilayer surface modification. In this study, the proliposomes containing RSO and βC are referred to as Ps, while the modified formulations are denoted as sodium alginate–chitosan-modified proliposomes (SA-CS-Ps).Materials and methodsThe physicochemical properties, structural characteristics, thermal stability, microstructure, rheological behavior, storage stability, and oxidation kinetics of SA-CS-Ps were investigated and compared with those of unmodified Ps and CS monolayer-modified Ps (CS-Ps).ResultsThe particle size and turbidity of Ps increased with the addition of modification layers, reaching 563.73 nm and 0.697, respectively, for SA-CS-Ps. CS and SA formed a protective bilayer through electrostatic interactions, which preserved the spherical structure of Ps while enhancing its apparent viscosity and stress. Thermal stability analysis indicated that the phase transition temperatures of CS-Ps and SA-CS-Ps were elevated by 10.57 and 15.76 °C, respectively, compared with that of unmodified Ps. During storage, the retention rates (RRs) of RSO and βC followed the order SA-CS-Ps>CS-Ps>Ps, whereas malondialdehyde and peroxide values exhibited the opposite trend. Elevated temperatures accelerated oxidation, thereby compromising the protective effect of the carriers. After 24 d at 4 °C, SA-CS-Ps demonstrated superior stability, with malondialdehyde of 0.016 μg/mg, peroxide value of 2.697 mmol/kg, and RRs of RSO of 97.15% and βC of 96.37%. The oxidation kinetics conformed to a first-order reaction model.ConclusionsGiven its enhanced protection against degradation and stability, SA-CS-Ps represents a promising candidate for the delivery of sensitive bioactive compounds. This study provides a theoretical basis for the application of bilayer-modified proliposomes in functional food delivery systems requiring enhanced stability.
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Food Chemistry-X
·
2026
·
IF 8.2
Mingyu Zhu,Zhiyun Peng,Guangcheng Wang
The fruit of Rosa roxburghii Tratt. (RRT) is frequently eaten in Guizhou Province, China. Thirty compounds from RRT fruit were identified by the bioaffinity-ultrafiltration method. Among them, quercetin, diosmetin, luteolin, and apigenin (IC 50 = 4.80 ± 0.12 μg/mL, 52.62 ± 0.26 μg/mL, 17.51 ± 0.27 μg/mL, 33.24 ± 0.32 μg/mL) exhibited significant α-glucosidase inhibitory activities. Based on multispectral and molecular docking analyses, these active compounds bind to the active site of α-glucosidase via at least four hydrogen bonds and van der Waals forces, thereby altering its hydrophobic environment and secondary structure. in vivo studies showed that compared to the AUC of postprandial glucose in the model (2809.33 ± 64.84 mM·min) and in the acarbose group (2525.40 ± 54. 28 mM·min), these compounds decreased postprandial blood glucose levels. Long-term administration of apigenin additionally improved lipid metabolic disorders. These results support the development of RRT fruit as a hypoglycemic functional food.
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Food Chemistry-X
·
2026
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IF 9.2
Xiaoli Zhou,Yan Chen,Shengyan Zhang,ShuangQin Zhang,Tailan Liu,Nian Liu,Yanxin Yang
Rosa roxburghi Tratt. (RRT) pomace is rich in insoluble dietary fiber (IDF) and polyphenols, but free polyphenols are susceptible to premature loss during digestion. This study constructed an IDF–polyphenol complex (IDF-PP) from RRT pomace via non-covalent adsorption and evaluated its gastrointestinal fate and in vitro colonic fermentation behavior. IDF-PP reduced premature phenolic loss during simulated upper gastrointestinal digestion and enabled a more gradual release during fermentation. Structural analyses showed fermentation-induced remodeling, generating a porous residual matrix while retaining part of the polysaccharide framework. Compared with free polyphenols and IDF, IDF-PP increased short-chain fatty acid production, especially butyrate, and was associated with higher relative abundance of Prevotella -centered Bacteroidetes taxa and Faecalibacterium , together with lower relative abundance of Proteobacteria . Fermentation products also showed enhanced antioxidant and α-glucosidase inhibitory activities. These findings suggest that RRT pomace-derived IDF-PP is a promising fermentation-responsive functional ingredient with potential to modulate gut microbial fermentation.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Lina Luo,Junxi Zhou,Feiyan Yang,Lianfang Tian,Qian Chen,Yu Liu,Guofang Xie
Kombucha fermentation increases the bioactive components and reduces the sugar. • Komagataeibacter_saccharivorans and JC017_sp004296775 were identified as the key functional strains driving metabolism and flavor formation. • Kombucha fermentation promotes the production of beneficial components and reduces bitterness and volatile acids. • By integrating microbiome, metabolome and GC–MS data, the system reveals the dynamic association between microbial succession and metabolites during fermentation. Cili ( Rosa roxburghii Tratt) represents a promising novel substrate of kombucha. This study investigates the dynamic changes and interrelationships among bioactive compounds, flavor components, microbial communities, and metabolites during the fermentation of Cili kombucha. The results indicate that kombucha fermentation significantly increases the contents of organic acids, flavonoids, and polyphenols in Cili juice. An integrated multi-omics analysis identifies Komagataeibacter saccharivorans and JC017_sp004296775 as core functional strains that modulate metabolite biosynthesis and flavor regulation, which promoted the accumulation of beneficial metabolites, including D-tagatose, fumaric acid, indolelactic acid, and tryptophol. Concurrently, the fermentation process reduced the levels of raw material-derived volatile acids (acetic acid, octanoic acid, hexanoic acid, nonanoic acid) and bitter-tasting metabolites (quinic acid). This study verifies the feasibility of using Cili as a substrate for kombucha through comparative controls and provides a theoretical basis for targeted process optimization and functional product development. Download: Download high-res image (157KB) Download: Download full-size image
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JOURNAL OF ETHNOPHARMACOLOGY
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2025
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IF 5.4
Jinlong Liu,Xingbo Bian,Xuefeng Bian,Jiahui Zhang,Zhengxin Li,Hanyang Liu,Jinying Wu,Xin Sun
Ethnopharmacological relevance Kaji-ichigoside F1 (KF1), the main active component of the Guizhou ethnic medicinal material Rosa roxburghii Tratt, is widely used in China due to its anti-inflammatory properties. However, the protective effects of KF1 against drug-induced liver injury and its potential mechanisms are not yet understood. Aim of the study We aimed to investigate the effects of KF1 on acute liver injury (ALI) and explore its underlying mechanisms, particularly its role in modulating the gut microbiota to inhibit ALI development. Materials and methods KF1 was prepared via 80 % ethanol extraction, silica gel column chromatography, and Sephadex LH-20 column chromatography. Mouse models of ALI were established using acetaminophen (APAP) treatment, with or without KF1 (5 and 10 mg/kg). 16S rRNA gene sequencing, metabolomics, and transcriptomics approaches were employed to explore the inhibitory effect of KF1 on ALI. Additionally, the role of the gut microbiota was investigated through antibiotic treatment and fecal microbiota transplantation experiments. Results Treatment with KF1 significantly altered the gut microbiota composition, notably increasing the abundance of the probiotic Akkermansia muciniphila ( A. muciniphila ). Furthermore, A. muciniphila enhanced the levels of beneficial metabolites, including inosine. Notably, inosine significantly suppressed inflammatory factors and improved APAP-induced ALI. Transcriptomic analysis revealed that inosine inhibited key signaling pathways, including MAPK, PI3K-AKT, JAK-STAT3, IL-17, TNF, and cytokine–cytokine receptor interactions. Importantly, the preventive effect of KF1 is dependent on microbial mechanisms. Conclusion KF1 protects against ALI by modulating the gut microbiota and associated metabolites, thereby promoting a more favorable state and inhibiting pro-inflammatory pathways.
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BIOLOGICAL TRACE ELEMENT RESEARCH
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2026
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IF 4.3
Yang Wenyan,Ma Lu,Hu Ting,Zhang Lei,Wu Kewei,Chen Hualin,Zhang Dandan,Luo Peng
Geochemical fluoride pollution is a global public health issue affecting a wide range and large population. The major health hazard from long-term fluoride exposure is skeletal fluorosis, a highly disabling and irreversible bone damage disease with no effective early interventions available to date. Given reactive oxygen species (ROS) accumulation is a key event in fluoride-induced bone damage, we established a sodium fluoride-exposed rat model. During the phase when fluoride induced ROS accumulation and mild bone damage in rat bone tissue, we administered Rosa roxburghii Tratt juice (RRTJ)—a natural food-medicinal homologous plant with antioxidant properties—to explore its intervention effect and potential mechanism against fluoride-induced bone damage. Results showed RRTJ inhibited fluoride-induced decreases in bone mineral density and trabecular number in male rats. Since enhanced bone resorption mediated by osteoclast overactivation is the initiating link of these fluoride-induced pathological changes, this study further found RRTJ suppressed fluoride-induced increases in osteoclast activity in male rat bone tissue, specifically reducing osteoclast numbers in bone tissue and lowering serum levels of bone resorption markers CTX and TRAP-5b. This effect is achieved by RRTJ scavenging fluoride-induced ROS accumulation in bone tissue, restoring ROS/TNF-α/NF-κB pathway homeostasis, and thereby inhibiting the overexpression of osteoclast activation-related genes tartrate-resistant acid phosphatase and cathepsin K. In conclusion, this study confirms RRT inhibits fluoride exposure-induced bone damage in male rats by regulating ROS/TNF-α/NF-κB pathway homeostasis. These findings provide new perspectives on the mechanism of fluoride-induced bone damage and, more importantly, reveal a potential novel intervention strategy.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2018
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IF 3.909
Huizhu Wang,Yan Li,Zhihui Ren,Zhongcheng Cong,Mengjie Chen,Lin Shi,Xu Han,Jin Pei
An extraction assay applying microwave-assisted enzymatic treatment for polysaccharides in Rosa roxburghii was developed using response surface methodology. The process parameters were optimized using Plackett-Burman (PB) design and central composite design to enhance the Rosa roxburghii polysaccharide extraction yield. Specific conditions (microwave power, 575 W; microwave time, 18 min; liquid-to-material ratio, 13.5:1 mL/g; and enzyme dose, 6.5 g/mL) generated an experimental yield of 36.21 ± 0.62%, which closely agreed with the predicted value of 35.75%. Purification with a DEAE-52 cellulose column generated two fractions, PR-1 (from 6.2 × 10 3 to 7.4 KDa) and PR-2 (from 559.8 to 106.6 KDa). Subsequently, the antioxidant activity and α- d -glucosidase inhibitory activity of the two polysaccharide fractions were assessed; PR-1 exhibited stronger antioxidant activity and α- d -glucosidase inhibitory activity than PR-2. Finally, the monosaccharide composition of PR-1 was determined by HPLC using a 1-phenyl-3-methyl-5-pyrazolone precolumn derivatization method. The result showed that PR-1 contained mannose , ribose , rhamnose , glucosamine hydrochloride, glucuronic acid , galacturonic acid, glucose, galactose , arabinose and fucose with molar percentages of 2.1%, 0.54%, 2.1%, 0.26%, 1.5%, 22.7%, 24.0%, 26.4%, 19.6% and 0.89%, respectively.
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Foods
·
2026
·Vol. 15
·期 9
·1535
·
IF 6
Fangling Feng,Shuo Zhang,Chencen Lai,Zhiyu Chen,Jian Zhang,Jiuming He,Min Zhang,Pengjiao Wang,Xiuli Gao
Depression is a common mental disorder that substantially impairs patients’ daily life and work. To identify natural and safe preventive options, we investigated the preventive effect and underlying mechanism of theGanoderma lucidumandRosa roxburghiiTratt formula (GLRRTF) on depression. A total of 72 chemical components in GLRRTF were identified by UHPLC-ESI-Q-Exactive Plus Orbitrap-MS Analysis. GLRRTF (containing 400 mg/kg ofG. lucidumextract and 800 mg/kg ofR. roxburghiiextract per day), administered as a 1-week preventive intervention followed by 4 weeks of co-administration with chronic unpredictable mild stress, prevented the development of depression-like behaviors in male C57BL/6J mice and reduced neuronal damage in the hippocampus. Airflow-assisted desorption electrospray ionization mass spectrometry imaging and enzyme-linked immunosorbent assays showed that GLRRTF corrected abnormalities in neurotransmitter levels. The 16S rRNA sequencing indicated that GLRRTF restored dysbiosis of the gut microbiota. Metabolomic profiling revealed that GLRRTF increased the level of tryptophan and promoted tryptophan metabolism towards the 5-HT and indole pathways in feces and the brain. Western blot demonstrated that GLRRTF increased 5-HT production from tryptophan in the brain by regulating tryptophan hydroxylase 2 and DOPA decarboxylase. GLRRTF activated the PI3K/AKT pathway by regulating brain-derived neurotrophic factor and its receptor tropomyosin receptor kinase B. This research provides a comprehensive mechanistic understanding of GLRRTF’s preventive effect against depression, highlighting its potential as a novel, safe, and preventive functional food formulation.
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