Characterization of the quality of novel rye-buckwheat ginger cakes by chemical markers and antioxidant capacity

2016 ◽  
Vol 70 (3) ◽  
Author(s):  
Małgorzata Przygodzka ◽  
Henryk Zieliński

AbstractThe total phenolics and flavonoids, rutin, early, advanced and finalMaillard reaction products, and antioxidative capacity determined against 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonate) radical cation and superoxide anion radicals were used for the characterization of the quality of novel rye-buckwheat ginger cakes enriched with rutin (quercetin rutinoside). The cakes were prepared substituting 30 % of rye flour by light buckwheat flour or flour from roasted buckwheat dehulled grains and employing a dough fermentation-like incubation step. Enrichment of ginger cakes with rutin showed protective effect on lysine blockage, improved antioxidant properties, inhibited the formation of furosine and free fluorescent compounds thus stimulating the Maillard reaction progress towards melanoidin formation. The loss of the nutritional quality of cakes enriched with rutin was related to the formation of fluorescent compounds linked to protein and carboxymethyllysine at an advanced stage of the Maillard reaction. It can be concluded that free fluorescence intermediatory compounds, carboxymethyllysine and browning are the best chemical markers for the characterization of the quality of this novel type of ginger cakes. This study also indicates that rye-buckwheat ginger cakes enriched with rutin can be recommended for wider consumption since daily consumption of 250 g of these cakes may have a prophylactic or therapeutic effect corresponding to typical pharmacological drugs with rutin as the active component.

2016 ◽  
Vol 7 (6) ◽  
pp. 2582-2590 ◽  
Author(s):  
Ghada Elmhiri ◽  
Dounia Hamoudi ◽  
Samir Dou ◽  
Narges Bahi-Jaber ◽  
Julie Reygnier ◽  
...  

The present study has been conducted to evaluate the impact of the consumption of high MRP formula on changes in the microbiota and oxidative stress in the colon of IUGR piglets.


Author(s):  
Amanda Cristina Ramos Koike

The edible flowers are increasingly used in culinary preparations, which require new approaches to improve their conservation and safety. Irradiation treatment is safe and an effective alternative for food conservation. Indeed, it can also guarantee food quality, increasing shelf-life and disinfestation of it. This technology gives us a versatile way to get good quality food, reducing post-harvest losses. Dianthus chinensis flowers, popularly known as Chinese pink, are widely used in culinary preparations, being also acknowledged for their bioactive components and antioxidant properties. The purpose of this study was to evaluate the antioxidant activity of D. chinensis flowers submitted to electron beam and gamma irradiation at 0, 0.5, 0.8 and 1 kGy. The antioxidant properties were evaluated through 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity, reducing power and β-carotene bleaching inhibition assays. Total phenolics were also determined by the Folin-Ciocalteu assay. The antioxidant activity was higher for irradiated samples, especially those treated with 0.8 and 1 kGy, independently of the radiation source, which showed the highest capacity to inhibit β-carotene bleaching. Accordingly, the applied irradiation treatments seemed to represent feasible technology to preserve the quality of edible flower petals, being able to improve the antioxidant activity


Author(s):  
Shweta Srivastava

Introduction: Centratherum anthelminticum is an ethnomedicinal plant in India and a common ingredient in Ayurvedic formulations. The pharmacological effects of C. anthelminticum ranges from anti-oxidant, anti-diabetic, anti-microbial to recently found anti-cancer activity. Citrus aurantifolia (Rutaceae) is mainly used in daily consumption, in many cultural cuisines, and in juice production. It is widely used because of its antibacterial, anticancer, antidiabetic, antifungal, anti-hypertensive, anti-inflammation, anti-lipidemia, and antioxidant properties. Objective: To isolate and identify the compounds in the essential oils from the seeds of C. anthelminticum Kuntz and peels of C. aurantifolia (Christm.) swingle collected from the Delhi NCR region. Materials and Methods: The essential oils from seeds of C. anthelminticum Kuntz and peels of C. aurantifolia were extracted by steam distillation and analyzed by gas chromatograph and gas chromatography–mass spectrometer. Results: Chemical characterization of the volatile oil and seeds of C. anthelminticum Kuntz showed that the oil is greenish and semi viscous. The major component of the oil was found to be beta-caryophyllene (64.43%), beta-pinene (9.81%), alpha-humulene (4.64%), caryophyllene oxide (2.24%), gamma-elemene (1.73%), limonene (1.48%) and myrecene (0.11%). Whereas the major constituents of volatile oil from peels of C. aurantifolia comprises of twenty nine components viz.  sesquiterpne alcohols (20.68%) including  Globulol, Hurmularel, 6 - dien - 3 - ol. (-) -Spathulenol, ledol,alpha-bisabolol, - (-) Spathulenol and Sesquíterpene esters (20.68%), caryophyllene, alpha- Farnesene, alpha-Caryophylline, gamma -elemene, gamma-.neoclovene, monoterpene alcohol (13.79%). Conclusion: The present study revealed the chemical composition of essential oils of both the drugs under study which can be used as references in the food, pharmaceutical and cosmetic industries.


Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 272 ◽  
Author(s):  
Zhonghui Han ◽  
Jianxin Gao ◽  
Xiaomin Wang ◽  
Wenxiang Wang ◽  
Jing Dong ◽  
...  

To improve the quality and safety of brown fermented milk (BFM), the formation and alterations of potentially harmful Maillard reaction products (MRPs), including 3-deoxyglucosone (3-DG), methylglyoxal (MGO), 5-(hydroxymethyl)-2-furfural (HMF), acrylamide and flavour components were investigated during the browning, fermentation and commercial storage. MRPs were shown to be produced mainly during the browning stage. The levels of different substances varied during the fermentation and commercial storage stage. The proportion and type of carboxylic acids in the flavour components significantly increased during the fermentation stage. Browning index of milk during the browning stage was shown to be positively associated with the 3-DG (Pearson’s r = 0.9632), MGO (Pearson’s r = 0.9915), HMF (Pearson’s r = 0.9772), and acrylamide (Pearson’s r = 0.7910) levels and the total percentage of the flavour components from four different categories (Pearson’s r = 0.7407). Changes in physicochemical properties of BFM during production not only contribute to predict the formation of potentially unhealthy MRPs, but also Lactobacillus species used for the fermentation should be carefully selected to improve the quality of this product.


Foods ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 620 ◽  
Author(s):  
Amaia Iriondo-DeHond ◽  
Ana Sofía Elizondo ◽  
Maite Iriondo-DeHond ◽  
Maria Belén Ríos ◽  
Romina Mufari ◽  
...  

Our research aimed to evaluate the formation of Maillard reaction products in sun-dried coffee cascara and their impact on the safety and health promoting properties of a novel beverage called “Instant Cascara” (IC) derived from this coffee by-product. Maillard reaction products in sun-dried coffee cascara have never been reported. “Instant Cascara” (IC) extract was obtained by aqueous extraction and freeze-drying. Proteins, amino acids, lipids, fatty acid profile, sugars, fiber, minerals, and vitamins were analyzed for its nutritional characterization. Acrylamide and caffeine were used as chemical indicators of safety. Colored compounds, also called melanoidins, their stability under 40 °C and in light, and their in vitro antioxidant capacity were also studied. A safe instant beverage with antioxidant properties was obtained to which the following nutritional claims can be assigned: “low fat”, “low sugar” “high fiber” and “source of potassium, magnesium and vitamin C”. For the first time, cascara beverage color was attributed to the presence of antioxidant melanoidins (>10 kDa). IC is a potential sustainable alternative for instant coffee, with low caffeine and acrylamide levels and a healthy composition of nutrients and antioxidants.


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