Nutrafoods 1 – 2017 (pdf)

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COD: NF1-2017 ita Categorie: ,
Editorial
Is curcumin really ineffective? 
Francesco Di Pierro

Original Research
Improved wound healing after oral application of specific bioactive collagen peptides
Hans-Christoph Knefeli, Benjamin Durani
Trophological status and quality of life in infants administered probiotic enterococci
Natalia V Gonchar, Vyacheslav P Maryshev, Tamara V Churkova, Galina G Alehina, Vitaliy A Dobrenko, Alexandr N Suvorov
Nutraceutical food products using lutein-rich supercritical carbon dioxide extract of marigold flowers: product characterization and storage studies 
Sayani Pal, Paramita Bhattacharjee
Phenolic content and antioxidant activity of solvent extracts of mahua (Madhuca longifolia) flowers and fruit  
Vinti Singh, Shalini Mishra, Jyotsana Singh, AK Rai
Isolation, characterization and industrial prospects of pectin isolated from Citrus macroptera and Citrus assamensis
GM Rabiul Islam, AKM Abdur Rahman-Un-Nasir
Physicochemical and functional properties of wheat and rice flour blends and physical and sensory analysis of cakes 
Umera Baba, FA Masoodi, Adil Gani, Tanzila Hamid, Mudasir Ahmad, Sumera Baba
Gastrointestinal activity of dietary flaxseed lignans, omega-3 fatty acids and fibres 
Carmen Laurino, Beniamino Palmieri, Maria Vadalà

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Botanicals - Orally bioavailable standardized derivatives in sports nutrition  
Scientific Literature - Dietary supplements for healthy aging  

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Improved wound healing after oral application of specific bioactive collagen peptides
Hans-Christoph Knefeli, Benjamin Durani
Wound healing is very important after surgery and undisturbed closure of wounds is sometimes a major problem. Intensive efforts are made to improve wound healing using numerous approaches. In recent years, the oral application of specific bioactive collagen peptides has demonstrated positive effects on matrix synthesis and skin physiology. In this observational trial, their impact on wound healing was investigated in a group of 22 (12 verum/10 placebo) patients with postsurgical wounds and a second group of 20 (10 verum/10 placebo) patients with badly healing wounds. In both groups, the patients treated with bioactive collagen peptides had a clearly better outcome regarding wound healing compared to the placebo groups who showed suboptimal or bad results in the majority of cases. No side effects or intolerance to the product were reported. The results of this investigation confirm the positive impact of collagen peptides on wound healing. These data suggest this product can be used to improve wound healing, even in cases where normal wound healing is expected, and to achieve a better aesthetic outcome.

Trophological status and quality of life in infants administered probiotic enterococci
Natalia V Gonchar, Vyacheslav P Maryshev, Tamara V Churkova, Galina G Alehina, Vitaliy A Dobrenko5, Alexandr N Suvorov
This article presents the results of a study on the effectiveness of oral administration of the probiotic Enterococcus faecium L3 on the trophological status of infants and their quality of life. Over 10 weeks during autumn and winter, we observed 26 children aged 2–12 months in a specialized (psychoneurological) children’s orphanage. Children were randomly divided into a main group (n=15) and a comparison group (n=11). The groups were similar regarding sex (p=0.62) and trophological status (body weight, Chulitskaya index and body mass index). The average ages of the children in the main and comparison groups were 4.3±0.4 and 6.4±0.18 months, respectively (p=0.02). In addition to their regular food, children in the main group received 5 ml of a liquid probiotic form of E. faecium L3 108 CFU/ml twice a day. Indicators of trophological status were assessed every 2 weeks, change in quality of life according to the QUALIN questionnaire at baseline and at study completion, incidence of acute respiratory infections, and completion of planned vaccinations. Children in the main group showed increased growth rates during the first 4 weeks of the study and also an improved Chulitskaya index during the first 8 weeks of the study. Children in the main group had fewer acute respiratory infections, improved quality of life and more planned vaccinations.

Nutraceutical food products using lutein-rich supercritical carbon dioxide extract of marigold flowers: product characterization and storage studies
Sayani Pal, Paramita Bhattacharjee
Supercritical carbon dioxide extract of African marigold (Tagetes erecta L.) flowers, obtained at 80°C, 450 bar after 105 min extraction time at a flow rate of 2 l/min of gaseous CO2, was found to possess the best combination of phytochemical properties such as the highest lutein content (201.45±4.78 mg/100 g dry marigold petals) along with maximum DPPH radical scavenging activity (IC50 of 0.92±0.06 mg/ml) and ferric reducing antioxidant power (90.06±3.56 mM FeSO4 equivalent/g dry marigold petals) among all the extracts tested. This extract was successfully employed as a value-added ingredient in the formulation of jelly dessert and rice papad. These newly designed food products were stored at 4±1°C and 23±2°C, respectively. They were evaluated for their physicochemical properties (pH, gel strength, colour and rheology for the jelly dessert, and hardness, % expansion and colour for rice papad), phytochemical properties (lutein content and antioxidant activity), sensory attributes and microbial load (for papad samples alone) at regular intervals during a storage period of 2 months. The assays established the superiority of the jelly dessert and papad samples formulated with lutein-rich supercritical carbon dioxide extract of marigold flowers over their respective control samples. Lutein-rich jelly dessert and rice papad may therefore serve as two new green functional foods with promising nutraceutical benefits.

Phenolic content and antioxidant activity of solvent extracts of mahua (Madhuca longifolia) flowers and fruit
Vinti Singh, Shalini Mishra, Jyotsana Singh, A.K. Rai
Background: The aim of this study was to investigate the antioxidant activity of ethanol, acetone, methanol and water extracts of fresh mahua (Madhuca longifolia) flowers and fruit. Antioxidant potential was examined by measuring total phenolic content (TPC), total flavonoid content (TFC) and total antioxidant capacity using the 2,2-diphenyl-2-picrylhydrazyl hydrate (DPPH) radical scavenging assay and the Trolox equivalent antioxidant capacity (TEAC) assay.
Results: The highest and lowest phenol and flavonoid contents were found in the acetone and water extracts, respectively. The antioxidant activity of mahua flowers and fruit measured by different assays were higher in the acetone extract compared to the other solvent extracts (acetone extract>methanol extract>ethanol extract>water extract).
Conclusion: The results indicate that the flowers and fruit of mahua are good sources of polyphenols and natural antioxidants and could be useful as functional food ingredients beneficial for human health.

Isolation, characterization and industrial prospects of pectin isolated from Citrus macroptera and Citrus assamensis
G.M. Rabiul Islam, A.K.M. Abdur Rahman-Un-Nasir
Pectin derived from citrus peel is both an excellent stabilizing agent and a high value functional food ingredient. Citrus macroptera and Citrus assamensis are endangered wild citrus species from northeast India. Although their peel is consumed locally as a vegetable and used for making pickles, no information is available on the quality characteristics of the pectin obtained from these fruits. Thus, the aim of this study was to isolate and characterize the pectin obtained from the peel of C. macroptera and C. assamensis in order to explore its potential industrial applications. Peels were acid digested and pectin was extracted with ethanol, methanol or isopropanol, and subsequently characterized. Pectin yield was highest with ethanol precipitation in both fruits. The equivalent weight (EW) of pectin extracted from C. macroptera and C. assamensis was 732.55±18.49 and 655.22±50.85, respectively, while methoxyl content, anhydrouronic acid content and degree of esterification (DE) were 1.62±0.24% and 1.36±0.25%, 33.28±1.36% and 34.74±1.56%, and 27.69±3.20% and 22.37±4.26%, respectively. Both fruits yielded low methoxyl pectin (LMP) (DE <50%) and Fourier transform infrared spectroscopy analysis revealed that pectin from both fruits has functional groups within the 1740–800 cm–1 spectral region. Pectin from both C. macroptera and C. assamensis can be used for manufacturing low sugar foods as LMPs can form gels with low amounts of sugar or even without sugar in the presence of divalent cations.

Physicochemical and functional properties of wheat and rice flour blends and physical and sensory analysis of cakes
Umera Baba, FA Masoodi, Adil Gani, Tanzila Hamid, Mudasir Ahmad, Sumera Baba
Rice flour was incorporated into wheat flour at different percentages (2%, 4%, 6% and 8%) and its effects on the functional properties of the flour and the physical and sensory attributes of cakes made from the flour were studied. Significant effects were seen on functional parameters such as the water absorption capacity, oil absorption capacity, emulsion capacity, emulsion stability, foaming capacity and foaming stability of the flour blends. The symmetry index of the cakes decreased after 6% substitution. However, the volume index, uniformity index and hardness of cakes decreased significantly as the level of substitution with rice flour increased. The L*, a* and b* values of cakes also increased after 6% substitution with rice flour. Organoleptic evaluation revealed that cakes prepared from the blend with 8% substitution scored highest, followed by blends with 6%, 4% and 2% substitution, respectively.

Gastrointestinal activity of dietary flaxseed lignans, omega-3 fatty acids and fibres
Carmen Laurino, Beniamino Palmieri, Maria Vadalà
Flaxseeds are a significant dietary source of α-linolenic acid, dietary fibre and lignans. The aim of this review is to describe current knowledge concerning the therapeutic and physiological effects of dietary flaxseeds on the gastrointestinal system. We reviewed in vitro, in vivo and clinical studies published between 1976 and 2016 and examining the gastrointestinal activity of lignans, omega-3 fatty acids and fibre in dietary flaxseeds. We searched PubMed/MEDLINE using the keywords ‘lignans’, ‘flaxseeds’, ‘fibre’, ‘omega 3 fatty acids’ and ‘gastrointestinal’ alone or combined. The results indicate that flaxseed lignans and omega-3 fatty acids may be effective for preventing and reducing colon cancer, modulating constipation and diarrhoea through the synergic activity of lignans, fibre and omega-3 fatty acids, and reducing bowel inflammation through downregulation by omega-3 fatty acids of the expression of pro-inflammatory cytokines. In addition, a positive effect on the gut microbiota has been observed both in experimental in vivo studies and in clinical trials, probably through lignan activity, although the exact mechanism of action has not been elucidated. Our review suggests dietary flaxseeds may have beneficial effects on the gastrointestinal system.