Optimization of ultrasound assisted extraction of of goji berry (<i>Lycium barbarum</i>) fruits and evaluation of extracts' bioactivity

Skenderidis, Prodromos; Petrotos, Konstantinos; Giavasis, Ioannis; Hadjichristodoulou, Christos; Tsakalof, Andreas

doi:10.1111/jfpe.12522

Cited by 39 publications

(31 citation statements)

References 40 publications

(57 reference statements)

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“…Goji berries were extracted following optimal extraction conditions and the powder preparation was performed as described in our previous study [11]. It is well-known that freeze-dried carbohydrates and proteins may exist in an amorphous state with time-dependent physical properties that affect their storage stability [37].…”

Section: Goji Berry Powder Preparationmentioning

confidence: 99%

“…Furthermore, the prebiotic effect seems to be correlated to Goji berry polysaccharides and/or polyphenols, higher contents of which (under the tested concentrations) could increase the stress tolerance of B. lactis and B. longum in a simulated gastrointestinal environment. According to the findings of the present research, it can be suggested that the Goji berry encapsulated extracts could be used as prebiotic additives in food or nutraceuticals, in order to stimulate growth or protect the viability of probiotic strains of Bifidobacterium and Lactobacillus.Microorganisms 2020, 8, 57 2 of 14 lung disorders, and anticancer activity [10][11][12], thanks to which, L. barbarum fruit has recently gained increasing popularity in Europe and North America [12].Recently Goji berries have been also positively evaluated for their prebiotic potential in foods like yogurt [13], since their polysaccharides may be selectively utilized by some probiotic bacteria [14], although a potential prebiotic effect may be also linked to other molecules like polyphenols, which may stimulate the growth of probiotic bacteria in the gut, or inhibit the growth of antagonistic bacteria in the complex intestinal microbiota [15].Gut colonization by beneficial probiotic bacteria is recognized as an essential parameter for intestinal health, and human health in general. It occurs in early life, as Bifidobacterium and Lactobacillus species attach to the gastrointestinal tract, which is necessary for establishing the gut mucosal barrier, maturation and modulation of the immune system, preventing infections by enteric pathogens and improving gastrointestinal function, digestion, and metabolism [16][17][18][19][20].…”

mentioning

confidence: 99%

“…Microorganisms 2020, 8, 57 2 of 14 lung disorders, and anticancer activity [10][11][12], thanks to which, L. barbarum fruit has recently gained increasing popularity in Europe and North America [12].…”

mentioning

confidence: 99%

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The Effect of Encapsulated Powder of Goji Berry (Lycium barbarum) on Growth and Survival of Probiotic Bacteria

et al. 2019

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The aim of the present work was to investigate the potential prebiotic action of Goji berry powder on selected probiotic bacteria grown in a nutritive synthetic substrate and in simulated gastric and intestinal juices. Different probiotic strains of Bifidobacterium and Lactobacillus were grown in these substrates with or without the addition of encapsulated goji berry extracts of different polysaccharide and polyphenol contents. The results proved that the addition of the extracts promoted the proliferation of probiotic strains and, in particular, increased the number of bacterial colonies of Bifidobacterium animalis subsp. lactis (Bb12), Bifidobacterium longum (Bb46), and Lactobacillus casei by 2, 0.26, and 1.34 (log cfu/mL), respectively. Furthermore, the prebiotic effect seems to be correlated to Goji berry polysaccharides and/or polyphenols, higher contents of which (under the tested concentrations) could increase the stress tolerance of B. lactis and B. longum in a simulated gastrointestinal environment. According to the findings of the present research, it can be suggested that the Goji berry encapsulated extracts could be used as prebiotic additives in food or nutraceuticals, in order to stimulate growth or protect the viability of probiotic strains of Bifidobacterium and Lactobacillus.Microorganisms 2020, 8, 57 2 of 14 lung disorders, and anticancer activity [10][11][12], thanks to which, L. barbarum fruit has recently gained increasing popularity in Europe and North America [12].Recently Goji berries have been also positively evaluated for their prebiotic potential in foods like yogurt [13], since their polysaccharides may be selectively utilized by some probiotic bacteria [14], although a potential prebiotic effect may be also linked to other molecules like polyphenols, which may stimulate the growth of probiotic bacteria in the gut, or inhibit the growth of antagonistic bacteria in the complex intestinal microbiota [15].Gut colonization by beneficial probiotic bacteria is recognized as an essential parameter for intestinal health, and human health in general. It occurs in early life, as Bifidobacterium and Lactobacillus species attach to the gastrointestinal tract, which is necessary for establishing the gut mucosal barrier, maturation and modulation of the immune system, preventing infections by enteric pathogens and improving gastrointestinal function, digestion, and metabolism [16][17][18][19][20]. Nowadays, the presence (or supplementation) of certain probiotic bacteria, prebiotics or symbiotics (mixed preparations of probiotics and prebiotics) in the gastrointestinal tract is linked to prevention or reduced risk of ulcer, gastroenteritis, inflammation, colon cancer and metabolic syndrome (the latter involving hypolipidemic, hypocholesterolemic and potential hypoglycemic activity) as well as preterm birth and neonatal gastrointestinal disorder [21][22][23][24][25][26][27][28][29]. However, gut microbiota are not stable throughout life, and significant changes can occur naturally throughout the life...

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Section: Goji Berry Powder Preparationmentioning

confidence: 99%

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confidence: 99%

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The Effect of Encapsulated Powder of Goji Berry (Lycium barbarum) on Growth and Survival of Probiotic Bacteria

et al. 2019

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“…RSM has been used to optimize extraction of antioxidant compounds from a variety of plant materials and fruits . Recently, RSM has been employed for the optimization of UAE of Goji berries using water as solvent . The purpose of this work was to study for the first time the use of PLE for the extraction of phenolic compounds from Goji berry fruits.…”

Section: Introductionmentioning

confidence: 99%

Optimization of pressurized liquid extraction by response surface methodology of Goji berry (Lycium barbarum L.) phenolic bioactive compounds

et al. 2018

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Pressurized liquid extraction (PLE) has been used for the first time in this work to extract phenolic compounds from Goji berries according to a multilevel factorial design using response surface methodology. The global yield (% w/dw, weight/dry‐weight), total phenolic content (TPC), total flavonoid (TF) and antioxidant activity (determined via ABTS assay, expressed as TEAC value) were used as response variables to study the effects of temperature (50–180°C) and green solvent composition (mixtures of ethanol/water). Phenolic compounds characterization was performed by high performance liquid chromatography–diode array detector–tandem mass spectrometry (HPLC‐DAD‐MS/MS). The optimum PLE conditions predicted by the model were as follows: 180°C and 86% ethanol in water with a good desirability value of 0.815. The predicted conditions were confirmed experimentally and once the experimental design was validated for commercial fruit samples, the PLE extraction of phenolic compounds from three different varieties of fruit samples (Selvatico mongolo, Bigol, and Polonia) was performed. Nine phenolic compounds were tentatively identified in these extracts, including phenolic acids and their derivatives, and flavonols. The optimized PLE conditions were compared to a conventional solid‐liquid extraction, demonstrating that PLE is a useful alternative to extract phenolic compounds from Goji berry.

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“…Maca polysaccharide (LMP) can be prepared by solvent extraction, acid extraction, and alkaline extraction methods (Zha, Zhao, Chen, et al, 2014b). The extraction processes have inevitable correlations with the quality level of the extracts (Chi et al, 2018, Kim & Iwahashi, 2015, Skenderidis, Petrotos, Giavasis, Hadjichristodoulou, & Tsakalof, 2017. Therefore, efficient and controllable extraction processes not only can guarantee the quality of the Maca polysaccharide, but also play the role of enhancing and promoting the biological activities of Maca polysaccharide.…”

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Optimization of Maca polysaccharide extraction process and its chemo‐protective effects on cyclophosphamide‐induced mice

Wang

Huang

et al. 2018

J Food Process Engineering

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In this study, the extraction process of Maca polysaccharide (LMP) was deeply studied and its chemo‐protective effects on Cyclophosphamide (Cy)‐induced mice were evaluated. By single factor investigation and response surface methodology optimization, it was found that the liquid‐to‐solid ratio, extraction time, and extraction temperature were the main factors which affected the extraction yield of LMP. The optimum extraction process was obtained by Box–Behnken design combined with response surface methodology. It was found that, at the condition of liquid‐to‐solid ratio of 30:1; extraction time of 2.3 hr; and extraction temperature of 90°C, the yield of the LMP could reach 46.56%. Furthermore, by oral administration of LMP, the cyclophosphamide‐induced mice showed the proliferation of lymphocyte and the phagocytic capacity of macrophages’ enhancements. The number of white blood cell, red blood cell, and platelets in the peripheral blood were up‐regulated; the spleen total superoxide dismutase, Catalase, and Glutathione‐peroxidase activities were enhanced, while the Serum malondialdehyde and Triacylglycerols content was reduced. Therefore, our work provided an effective way for extraction of LMP and demonstrated the chemo‐protective effects of LMP on the animal level. Practical application Natural polysaccharides from functional food sources are widely accepted for their bioactive activities. As extraction conditions significantly affected the quality and yield of polysaccharides, the effective extraction process for polysaccharides should be systematically investigated. In the current work, the optimum conditions for polysaccharides extraction from Maca (Lepidium meyenii Walp.) (LMP) were obtained using liquid‐to‐solid ratio of 30:1 for 2.3 hr at 90°C. The Mass characterization and Monosaccharide Composition of LMP were also determined. Furthermore, the extracted LMP exhibited well Chemo‐protective activities on Cyclophosphamide‐induced mice. Therefore, our work showed the potential applications of Maca polysaccharides as the easily accessible source of natural immunopotentiating agents in function food and pharmaceutical industry.

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Optimization of ultrasound assisted extraction of of goji berry (Lycium barbarum) fruits and evaluation of extracts' bioactivity

Cited by 39 publications

References 40 publications

The Effect of Encapsulated Powder of Goji Berry (Lycium barbarum) on Growth and Survival of Probiotic Bacteria

The Effect of Encapsulated Powder of Goji Berry (Lycium barbarum) on Growth and Survival of Probiotic Bacteria

Optimization of pressurized liquid extraction by response surface methodology of Goji berry (Lycium barbarum L.) phenolic bioactive compounds

Optimization of Maca polysaccharide extraction process and its chemo‐protective effects on cyclophosphamide‐induced mice

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