Development Of Functional Beverages Research Articles

Effects of Emulsifiers on Physicochemical Properties and Carotenoids Bioaccessibility of Sea Buckthorn Juice.

The need to improve the physicochemical properties of sea buckthorn juice and the bioavailability of carotenoids is a major challenge for the field. The effects of different natural emulsifiers, such as medium-chain triglycerides (MCTs), tea saponins (TSs) and rhamnolipids (Rha), on the physical and chemical indexes of sea buckthorn juice were studied. The particle size of sea buckthorn juice and the carotenoids content were used as indicators for evaluation. The effects of different addition levels of MCT, Rha and TS on the bioavailability of carotenoids in sea buckthorn juice were investigated by simulating human in vitro digestion tests. The results showed that those emulsifiers, MCT, Rha and TS, can significantly reduce the particle size and particle size distribution of sea buckthorn juice, improve the color, increase the soluble solids content, turbidity and physical stability and protect the carotenoids from degradation. When the addition amount of Rha was 1.5%, the total carotenoids content (TCC) of sea buckthorn juice increased by 45.20%; when the addition amount of TS was 1.5%, the total carotenoids content (TCC) of sea buckthorn juice increased by 37.95%. Furthermore, the bioaccessibility of carotenoids was increased from 36.90 ± 2.57% to 54.23 ± 4.17% and 61.51 ± 4.65% through in vitro digestion by Rha and TS addition, respectively. However, the total carotenoids content (TCC) of sea buckthorn juice and bioaccessibility were not significantly different with the addition of MCT. In conclusion, the findings of this study demonstrate the potential of natural emulsifiers, such as MCT, Rha and TS, to significantly enhance the physicochemical properties and bioavailability of carotenoids in sea buckthorn juice, offering promising opportunities for the development of functional beverages with improved nutritional benefits.

Impact of Lactic Acid Bacteria Fermentation on (Poly)Phenolic Profile and In Vitro Antioxidant and Anti-Inflammatory Properties of Herbal Infusions.

Recently, the development of functional beverages has been enhanced to promote health and nutritional well-being. Thus, the fermentation of plant foods with lactic acid bacteria can enhance their antioxidant capacity and others like anti-inflammatory activity, which may depend on the variations in the total content and profile of (poly)phenols. The present study aimed to investigate the impact of fermentation with two strains of Lactiplantibacillus plantarum of several herbal infusions from thyme, rosemary, echinacea, and pomegranate peel on the (poly)phenolic composition and whether lacto-fermentation can contribute to enhance their in vitro antioxidant and anti-inflammatory effects on human colon myofibroblast CCD18-Co cells. HPLC-MS/MS analyses revealed that fermentation increased the content of the phenolics present in all herbal infusions. In vitro analyses indicated that pomegranate infusion showed higher antioxidant and anti-inflammatory effects, followed by thyme, echinacea, and rosemary, based on the total phenolic content. After fermentation, despite increasing the content of phenolics, the antioxidant and anti-inflammatory effects via reduction pro-inflammatory markers (IL-6, IL-8 and PGE2) were similar to those of their corresponding non-fermented infusions, with the exception of a greater reduction in lacto-fermented thyme. Overall, the findings suggest that the consumption of lacto-fermented herbal infusions could be beneficial in alleviating intestinal inflammatory disorders.

Investigation of bitter taste masking in the development of functional beverages based on sedative collection

The article considers the possibility of masking bitter taste in the development of a functional drink based on sedative collection and juices: grape and cherry, used as masking agents. Sensory studies were conducted on the formulation of the proposed beverages. In the study, respondents were asked to analyze samples with cherry and grape juices without added sugar with successively decreasing concentrations of sedative levy from 25 to 5%, then samples with added sugar and answer the question whether an unpleasant bitter taste and herbal aroma were present and at which sample the bitter taste ceased to be felt. The findings showed that the addition of sugar to the beverages altered the taste perception thresholds in the direction of increasing the concentration of the sedative collection decoction. Without the addition of sugar, the bitter taste ceases to be perceived at 15% of the functional additive using grape juice and at 20% using cherry juice. With the addition of sugar, the bitter taste was no longer felt at 20% of the functional additive with grape juice and 25% with cherry juice. Studies were conducted to identify the associative series: regarding with which fruit/berry the flavor of the beverage in general is associated. When analyzing the obtained results it was revealed that respondents accurately associated the samples of the row with cherry juice with cherry aroma (88%), when using grape juice 31% of respondents associated with strawberry aroma and 25% with cranberry aroma. As a result of the behavioral study it can be concluded that when developing a functional drink enriched with sedative collection it is possible to use cherry and grape juices with the concentration of functional ingredient 5 - 20% with the discretion of adding 5% in each flavor range

Evaluation of Antioxidant Properties of Commercial Pomegranate Juices

Background. Consumers consider pomegranate juice one of the most beneficial for health. The limited production of pomegranates in Russia cannot meet the needs of Russian consumers with juices of its own production. Pomegranate juices are produced from concentrates or pasteurized direct-squeezed juices imported from different countries, there is no information about their antioxidant properties.Purpose. Study of the content of the main biologically active substances and antioxidant activity of pomegranate juice of various brands on the consumer market, and their influence on the formation of antioxidant properties.Materials and Methods. The objects of research were freshly pressed juice from pomegranate fruits (control)and samples of commercial pomegranate juices produced using different technologies: «Grande», «Benature», «Grante» -direct-squeezed juice; «Swell», «O'keй», «Rich», «Gold Brand» - reconstituted pomegranate juice; «Nar» - reconstituted juice with the addition of direct-squeezed juice. In juices, the total content of phenolic compounds, anthocyanin, flavonoids, tannins and vitamin C was determined. The antioxidant activity of juices was determined by two methods: FRAP and coulometrictitration based on the measurement results of which the antioxidant index was calculated.Results. Juices of industrial production differed significantly in the amount of biologically active substances, the spread of values in their content between juices was 40-50%, they contained significantly less total anthocyanin and total flavonoids than freshly-pressed juice. Total tannins prevailed in the composition of phenolic compounds of all juices (40-75%). The antioxidant activity of juices varied depending on the method of determination. The FRAP test showed the highest values of antioxidant activity in the reconstituted pomegranate juice «Rich», and the coulometric titration showed the highest values in the direct-squeezed pomegranate juice «Benature». Juices had the highest antioxidant index Rich>Benature>Grante, the values of which were more than 85%. The antioxidant properties of pomegranate juices depend on the total amount of phenolic compounds (R2> 0.772) and total tannins (R2> 0.538).Conclusion. The formation of antioxidant properties of pomegranate juices depends on the amount of total phenolic compounds and total tannins. The results of the evaluation of the antioxidant properties of commercial pomegranate juices can be used in the development of functional beverages.

Effect of Functional Water on the Antioxidant Property of Concentrated Reconstituted Juice.

People often consume juice to easily ingest antioxidants, which can scavenge free radicals and reduce the risk of lifestyle-related diseases. In this study, the SOD assay kit-WST method was used to evaluate the antioxidant activity of two types of functional water, alkaline electrolyzed water (AlEW) and tourmaline water (TMW), reconstituted commercially available (Tropicana) and freshly squeezed concentrated juices and the effect of functional waters on physicochemical parameters and sensory evaluation of reconstituted juices was also analyzed. The reconstituted juice exhibited the highest antioxidant activity when the electrolysis current of AlEW was 8A or the tourmaline stone treatment temperature of TMW was 75 °C. Compared with the control group (69.4%), SOD activity of the reconstituted orange juice in the 8A-AlEW (77.2%) and 75 °C-TMW (84.5%) groups increased by 7.8 and 15.1%, respectively. Furthermore, the color and pH of the functional water reconstituted juice were not significantly different from the juice before concentration, and the taste was better. In summary, functional water could enhance the antioxidant activity of concentrated juice as a formula which could provide novel ideas for the development of functional beverages with antioxidant properties.

Non-Volatile and Volatile Bioactives of Salvia officinalis L., Thymus serpyllum L. and Laurus nobilis L. Extracts with Potential Use in the Development of Functional Beverages.

Functional beverages based on herbal extracts are highly demanded products due to the presence of bioactives with promising health benefits and interesting and characteristic sensory properties. Mediterranean medicinal and aromatic herbs contain a wide range of bioactives (non-volatile polyphenols, volatile terpenes) that are important constituents of herbal extracts and essential oils. The antioxidant capacity and potential health benefits of these bioactives could be associated with their synergistic effects. Therefore, this study aimed to characterize the non-volatile and volatile bioactives of sage (Salvia officinalis L.), wild thyme (Thymus serpyllum L.) and laurel (Laurus nobilis L.) aqueous extracts and their two- and three-component mixtures as well as their antioxidant capacity. The content of total phenols, flavonoids, hydroxycinnamic acids and flavonols was determined spectrophotometrically. Individual polyphenols were analyzed by LC-MS/MS, the volatiles were analyzed by HS-SPME/GC-MS, and the antioxidant capacity was analyzed by ORAC and DPPH assays. The results showed that aqueous extracts of all examined herbs and their mixtures contained a high content of phenolic compounds ranging from 0.97 to 2.79 g L−1 of the sample, among which the most common were flavonols. At the same time, mono- and sesquiterpenes were the main volatiles. All extracts showed high antioxidant capacity, especially L. nobilis (781.62 ± 5.19 μmol TE mL−1 of the sample in the DPPH assay; 1896.10 ± 8.77 μmol TE mL−1 of the sample in the ORAC assay) and the two-component mixture of L. nobilis and T. serpyllum (679.12 ± 5.19 μmol TE mL−1 in the DPPH assay; 1913.38 ± 8.77 μmol TE mL−1 in the ORAC assay). Mixtures of herbal extracts have been shown to possess additive or synergistic effects, consequently contributing to higher antioxidant capacity. Therefore, two-component mixtures of herbal extracts showed promising potential for the production of functional beverages.

Development of Functional Beverage with Antioxidant Properties using Germinated Red Rice and Tempeh Powder Mixture

The objectives of this study were to develop a functional beverage containing Germinated Red Rice (GRR) and tempeh powders and analyze the total soluble phenolic content, phenolics profile, in vitro antioxidant activity, and sensory evaluation. A mixture of GRR and tempeh powder at 1:2, 1:1, and 2:1 w/w ratios were mixed with water at 6% w/v concentration. The total soluble phenolic content and the antioxidant activity of the samples increased significantly (p<0.05) with the increasing level of GRR powder and the decreasing level of tempeh powder, whereas 2:1 w/w ratio of GRR and tempeh powder showed the highest total soluble phenolic content (79.79±12.10 ig/ml GAE) and in vitro antioxidant activity (68.84±1.56%). However, a control beverage containing only GRR powder and only tempeh powder had the highest and lowest total soluble phenolic content and antioxidant activity, respectively. Ferulic acid was detected in all samples containing GRR, while daidzein was not detected and genistein was only detected in 1:2 and 1:1 sample ratios. All formulated samples in lemongrass sugar solution were accepted by the panelists (score 5 out of 7). In conclusion, GRR was responsible to increase the total soluble phenolic content and antioxidant activity of the beverage. A loss of isoflavone in the tempeh-containing beverage samples suggested that optimizing the dose and processing method were important to achieve the optimum health benefits of the ingredients.

Interaction of Soy Protein Isolate Hydrolysates with Cyanidin-3-O-Glucoside and Its Effect on the In Vitro Antioxidant Capacity of the Complexes under Neutral Condition

The interaction of soy protein isolate (SPI) and its hydrolysates (SPIHs) with cyanidin-3-O-glucoside (C3G) at pH 7.0 were investigated to clarify the changes in the antioxidant capacity of their complexes. The results of intrinsic fluorescence revealed that C3G binds to SPI/SPIHs mainly through hydrophobic interaction, and the binding affinity of SPI was stronger than that of SPIHs. Circular dichroism and Fourier-transform infrared spectroscopy analyses revealed that the interaction with C3G did not significantly change the secondary structures of SPI/SPIHs, while the surface hydrophobicity and average particle size of proteins decreased. Furthermore, the SPI/SPIHs-C3G interaction induced an antagonistic effect on the antioxidant capacity (ABTS and DPPH) of the complex system, with the masking effect on the ABTS scavenging capacity of the SPIHs-C3G complexes being lower than that of the SPI-C3G complexes. This study contributes to the design and development of functional beverages that are rich in hydrolysates and anthocyanins.

Development of functional beverages from herbs: aspect of nutrition, processing and safety

Indonesia has various herbal plants which potentially developed as functional food. Herbal plants such as ginger, lemongrass and pandan leaves can be processed into functional beverages as immune system booster. Functional beverages must fulfill two main functions, first having nutritional content and second, providing acceptable sensory functions such as good taste and texture. The processing of herbal plants into functional beverages requires knowledge of the bioactive compounds content, the ability of these compounds to boost the immune system and the safety of the resulting products. The safety of functional drinks products can be analyzed through the determination of the critical point (Critical Control Point) for the functional drinks processing.

The Development and Consumer Acceptance of Functional Fruit-Herbal Beverages.

The development of functional beverages often requires a compromise between the palatability and high content of bio-active compounds. The purpose of this study was to elaborate on the fruit-herbal beverages with defined pro-health functions and evaluate their consumer acceptance. The beverages contained 80% of juices obtained from the fruits of aronia, rugosa rose, acerola, sea buckthorn, and cranberry. Each beverage was supplemented with different plant extracts which enhanced the designed functions of the beverage. The beverages were sweetened with sugar or with steviol glycosides, and were preserved by thermal pasteurization. The main groups of bio-active compounds and antioxidant capacity using ABTS, DPPH, and ORAC methods were analysed before and after pasteurization. The sensory acceptance was tested by 60 adult consumers who assessed the desirability of taste, odour, colour, and overall quality. Each beverage contained substantial amounts of polyphenols, including anthocyanins; rosehip-acerola and sea buckthorn beverages were also sources of vitamin C and carotenoids. All these components were stable under thermal treatment. Rosehip-acerola beverages had the highest antioxidant capacity, which was measured using all three methods exhibited. The highest level of consumer acceptance and willingness to purchase went to aronia beverages, while the sea buckthorn gained the lowest. There was no significant difference between the acceptance of beverages sweetened with sugar and stevia. Women and the 25- to 34-year-old consumer group rated the overall acceptability of the beverages slightly higher, although this was not reflected in their inclination to buy them. Attitude toward proper body mass and health had no influence on overall acceptance and willingness to complete the purchases. The main motivation for purchasing the functional beverages was their sensory acceptance, even if the consumers were informed of their potential health benefits.

Microencapsulation of wild pomegranate flavedo phenolics by lyophilization: Effect of maltodextrin concentration, structural morphology, functional properties, elemental composition and ingredient for development of functional beverage

In this study, effect of maltodextrin concentrations on microencapsulation of wild pomegranate flavedo (peel) phenolics through lyophilization was investigated and the 1:2 (w/w) of phenolics to maltodextrin (carrier) was optimized on the basis of various functional properties and structural morphology of microencapsulated phenolics (MPE). MPE retained higher phenolics (78.47 ± 0.39 GAE/g) and flavonoids (4.18 ± 0.03 QuE/g) content with homogenous coating on particle surface was observed through SEM examination. However, ellagic acid along with punicalagin as well as higher antioxidant activity, metal chelation, FRAP and reducing power were also observed in MPE besides antibacterial activities against food borne pathogens. The functional and elemental composition of MPE was analyzed by FTIR and EDX spectroscopy with FESEM imaging. The resultant MPE was further evaluated for enhancement of the functional properties of ordinary ready to serve drink. After addition, it was observed that MPE could be acceptable in drink up to 2% (w/w) beyond this concentration sensory acceptability decreased significantly (p < 0.05). Further enriched drink shows significant improvement in phenolics, flavonoids and antioxidant activity as compared to control sample. Thus study will be supportive in attracting many food processor/industrialist and researcher to find new way for flavedo and MPE application in food industry.

Cardiac Lipid Metabolism Is Modulated by Casimiroa edulis and Crataegus pubescens Aqueous Extracts in High Fat and Fructose (HFF) Diet‐Fed Obese Rats

AbstractThis study aim to evaluate the effect of Casimiroa edulis and Crataegus pubescens aqueous extracts on cardiac lipotoxicity in obese rats. Both extracts decrease cardiac hypertrophy and steatosis in high fat and fructose (HFF)‐diet‐fed obese rats. C. pubescens decreases the cardiac content of 16 and 18 carbon‐length fatty acids, whereas C. edulis extract does not alter the fatty acid profile. Regarding lipotoxic compounds, C. pubescens reduces the cardiac content of 16 and 18 carbon‐length ceramides and diacylglycerols, whereas C. edulis extract reduces ≥20 carbon‐length lipotoxic compounds. Both extracts down‐regulate fatty acid synthase (Fasn) and acetyl‐CoA carboxylase (Acaca) (lipogenesis), glyceril‐3‐phosphate acyltransferase (Gpat) (diacylglycerol synthesis) and serine palmitoyltransferase 1 (Spt1) (ceramide synthesis), and up‐regulate carnitine palmitoyltransferase 1 (Cpt1) and acyl‐CoA dehydrogenase (Acadm) (β‐oxidation), and the greatest effect is observed with C. pubescens. In addition, C. edulis exerts the greatest cardiac anti‐inflammatory activity, whereas C. pubescens shows the highest cardiac antioxidant activity. The cardioprotective effect of C. pubescens may be associated with its content of (−)‐epigallocatechin gallate, (+)‐catechin, chlorogenic acid, caffeic acid, and β‐campesterol, whereas the beneficial effect of C. edulis may be related to its high content of steroidal saponins and alkaloids. Therefore, these results demonstrate that both herbal aqueous extracts ameliorate cardiac lipotoxicity in HFF‐diet‐fed rats, and C. pubescens exerts a greater beneficial effect.Practical Applications: This study proposes the characterization of fatty acids and lipotoxic compounds (ceramides and diacylglycerols) of cardiac tissue in combination with the determination of the expression of specific genes related to lipid metabolism to identify the mechanisms associated with the cardioprotective effects of herbal extracts. The results obtained in this study demonstrate the cardioprotective potential of Casimiroa edulis and Crataegus pubescens aqueous extracts through the modulation of cardiac lipid metabolism in high fat and fructose diet fed obese rats. Therefore, these herbs can be used for the development of functional beverages or the extraction of bioactive compounds with cardioprotective effect.

Использование биологически активных веществ лекарственных растений Сибири в функциональных напитках на основе молочной сыворотки

The use of infusions and extracts from domestic plant materials is a promising direction in the development of functional beverages since they contain a wide range of substances of various pharmacological properties. Drinks fortified with physiologically active natural components maintain a certain level of this content in human body. They can have a healing or prophylactic effect. However, there is a lack of technologies for the effective production of biologically active substances from plant materials. Moreover, the development of cultivated botanical medicinal plant species remains quite poor. The present study features the qualitative and quantitative composition of biologically active substances of medicinal plants that are endemics of Siberia. They are Rhodiola rosea (Rhodiola rosea L.) and maral root (Rhaponticum carthamoides). The paper introduces a method for increasing their biosynthetic activity. An experiment helped to select a composition of the nutrient medium for the cultivation of callus cultures of Rhodiola rosea (Rhodiola rosea L.) and maral root (Rhaponticum carthamoides) in vitro, which contributed to an increase in the biosynthesis of biologically active substances. For callus cultures of Rhodiola Rosea (line R.r-1k) the following composition was used: mineral base – MS; sucrose – 30 g; inositol – 100 mg; thiamine – 1.0 mg; pyridoxine – 1.0 mg; Ca-panthetonate – 10 mg; kinetin – 0.05 g; naphthyl acetic acid – 0.1 g; 2.4-D – 0.5. For callus cultures of maral root (line R.c -2k): mineral base – SH; sucrose – 30 g; inositol – 100 mg; thiamine – 5.0 mg; pyridoxine – 0.5 mg; nicotinic acid – 5.0 mg; kinetin – 0.1 g; indoleacetic acid – 1.0 g. The authors developed a technology for the production of functional whey-based tonic drink fortified with extract of carotenoids isolated from the fruits of mountain ash and the extract of biologically active substances Rhodiola rosea and maral root. The presence of biologically active substances in the plant and medicinal raw materials gives the drink antioxidant and bactericidal properties, as well as helps to raise the overall state of the organizm and strengthen the immune system.

Mechanisms Associated with the Effect of Hypericum perforatum and Smilax cordifolia Aqueous Extracts on Hepatic Steatosis in Obese Rats: A Lipidomic Approach

This study aims to evaluate the effect of H. perforatum and S. cordifolia extracts on hepatic steatosis in obese rats, and to elucidate their mechanisms through a lipidomic analysis. Fifty‐seven phytochemical compounds are identified in H. perforatum and S. cordifolia aqueous extracts by UPLC‐QTOF MSE. Both herbal aqueous extracts ameliorate hepatic steatosis. S. cordifolia modulates arachidonic acid, 16:0‐, 16:1‐, and 18:0‐derived TAG, ceramides, and diacylglycerols, regulating the expression of genes involved in fatty acid (Fas, Acc, and Scd1), diacylglyceride (Gpat) and ceramide (Spt1) biosynthesis, and β‐oxidation (Cpt1 and Acadm). H. perforatum regulates eicosapentanoic acid metabolism, which is associated with Fabp down‐regulation. Both extracts reduce hepatic TNF‐α and IL‐6 levels, which is associated with eicosanoid pathway regulation by S. cordifolia and the modulation of phosphatidylcholines and phosphatidylethanolamines by H. perforatum. These results suggest that these aqueous extracts can be used as ingredients for the elaboration of functional beverages with hepatoprotective effects.Practical Applications: This study proposes a lipidomic approach followed by the integration of metabolic networks for the identification of the mechanisms associated with the hepatoprotective effect of herbal extracts. The results obtained in this study demonstrate the beneficial effect of S. cordifolia and H. perforatum aqueous extracts on hepatic steatosis in high‐fat and fructose diet‐fed obese rats. Therefore, these herbs can be used for the elaboration of functional beverages.H. perforatum and S. cordifolia aqueous extracts ameliorate hepatic steatosis in obese rats. A liver lipidome approach is used to identify the mechanisms associated with their hepatoprotective effect by integrating metabolic networks. H. perforatum decreases Fabp hepatic expression which is associated mainly with decreased hepatic EPA. S. cordifolia decreased Fasn, Acaca, Scd1, Gpat1, and Spt1 and increased Cpt1 and Acadm hepatic expressiobm which is associated mainly with increased AA. These herbs have potential for the development of functional beverages or dietary supplements with hepatoprotective effects.

Development technology of functional drinks made from ginger extracts as products model for developing small-medium enterprises

As society’s awareness of processed products comes from natural ingredients, research on the development of functional beverages that focussing on the antioxidant capacity of the mixture of ginger rhizome extractive products with other spices’extractive products is also growing. In accordance with the expansion of the utilization of extractive ginger products, this paper will described some research result that focuses on technology development of functional drinks based on ginger extract as a model of small - medium enterprise development products, such as (1) Composition of health drink from spices in the form of a mixtures of 17 kinds of spices that having certain active compounds and nutritious for health; (2) syrup contains ginger and lemongrass extracts and also honey; and (3) Antioxidant-rich drink of mixture red mangosteen and ginger emprit extracts as basic formula, and then development of basic formula by adding spices extracts mixture of cinnamon and cloves. These three types of functional drinks are made from natural ingredients, especially ginger extracts (essential oil), not only has a distinctive flavour and aroma favoured by consumer, as well as attractive colors appearance, but also effective enough for lowering serum cholesterol levels and regularly consumption can contributed in prevention of coronary heart disease. Therefore the technology of health drink development based on ginger extract through its diversification products can be increased the economic value of ginger and other spices, improve the image of traditional food products, products price are able to compete with the types of energy drink, reduce the import of nutritional supplement product, and support the government programmes in the field of public health using natural materials.

DESIGNING FUNCTIONAL BEVERAGES PROCESS : HIGHLIGHTING LESSONS LEARNED FROM RESEARCH AND DEVELOPMENT

In recent times, there has been growing recognition of the key role of foods and beverage in disease prevention and treatment. Rapidly increasing knowledge on nutrition, medicine, and plant biotechnology has dramatically changed the concepts about food, health and agriculture, and brought in revolution of them. Research currently underway at academic, industry and government facilities will reveal how a myriad of substances can be used as functional food components. Thus natural bioactive compounds include a broad diversity of structures and functionalities that provide an excellent pool of molecules for the production of nutraceuticals, functional foods, and food addives. This review attempts to display about research and development of functional beverages and designing functional beverages and the formula for beverage success.Keywords: designing, functional beverages, lessons learned, highlighting, research and development.

The Research and Development of Quercetin Glucosides-Containing Beverage with Reducing Activity for Body Fat: The Development of Functional Beverage Approved as a Food for Specified Health Uses

The Research and Development of Quercetin Glucosides-Containing Beverage with Reducing Activity for Body Fat: The Development of Functional Beverage Approved as a Food for Specified Health Uses

Glycemic Index in the Development of Functional Beverage

Background: Due to the prevalence of diabetes in Jamaica, an understanding of the glycemic index (GI) and glycemic load (GL) values of beverages and food can aid dieticians in guiding consumers to choose sensibly. It is reported that consumption of low GI and GL foods may reduce the risk of type 2 diabetes, coronary heart disease and obesity. However, low GI snacks/food available to diabetic patients in Jamaica are very limited. This study was conducted to develop a low GI and GL vegetable drink that could be commercialized. Methods: Ten (10) healthy Jamaican subjects (5 males and 5 females) with mean age 30 ± 2 years and mean BMI 25 ± 1 kg/m2 were recruited to the study. Using a non-blind, crossover design trial, the subjects consumed equicarbohydrate amounts (25 g of total available carbohydrate) of the vegetable (beetroot – Beta vulgaris, cucumber – Cucumis sativus and carrot – Daucus carota) drink and twice glucose as reference food (25 g of total carbohydrate). Blood glucose was determined after overnight fasting (0 hours) and at 15, 30, 45, 60, 90 and 120 minutes after the consumption of each test food. The glycemic index (GI) value was calculated geometrically by expressing the incremental area under the blood glucose curve (IAUC) as a percentage of each subject's average IAUC for the standard food. Results: The GI and GL values of the vegetable drink were found to be 34 ± 10 and 4.4, respectively. As per the Food and Agriculture Organization, GI cut-off values are as follows: low 70 and for GL, low ≤ 10, medium 10 to 20 or high ≥ 20. Hence the vegetable drink could be classified under low glycemic food/ nutrient. Conclusion: Identification of beverages and other foods with low glycemic responses may have practical applications in controlling blood glucose levels. This study provides scientific evidence of the blood glucose response of the formulated vegetable drink. The complex carbohydrates in beetroot, carrot and cucumber may be responsible for the low postprandial glycemic response. This will lead to a low demand for insulin secretion from the pancreatic β cells, which are often impaired in type 2 diabetic individuals.

Development of functional beverage from Sapodilla (Manilkara Zapota L.) fruit

Development of functional beverage from Sapodilla (Manilkara Zapota L.) fruit

Development of functional beverage from wheat grass juice

The juice from wheat grass is called "green blood" and is an excellent detoxifying, facilitating the elimination of toxins and fats from body. In the form of fresh juice, it has high concentrations of chlorophyll, active enzymes, vitamins and other nutrients. The aim of this work was the development and characterization of a functional beverage from green wheat juice by adding apple and limes. The antioxidant capacity, vitamin C, polyphenols and flavonoids content were quantified by using spectrophotometry. The final product was pasteurized and evaluated by the content of bioactive compounds during storage at intervals of 7 and 14 days. During storage there were found slight decreases of the contents of bioactive compounds. The juice obtained has a sweet-sour taste, a unique flavor and a very pleasant smell. This product targets all categories of consumers and represents an ideal morning snack for those who are concerned about a healthy lifestyle.