Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: List of Review 2016 Journal: Czech Journal of Food Sciences Pages: I-II Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/9714-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/9714-CJFS.html File-Format: text/html Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:9714-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Anetta Barska Author-Workplace-Name: Faculty of Economics and Management, University of Zielona Góra, Podgórna, Zielona Góra, Poland Author-Name: Joanna Wyrwa Author-Workplace-Name: Faculty of Economics and Management, University of Zielona Góra, Podgórna, Zielona Góra, Poland Title: Innovations in the food packaging market - intelligent packaging - a review Abstract: The manufacturers have to provide modern and safe packaging due to the growing consumer interest in the consumption of fresh products with extended shelf-life and controlled quality. It is a challenge to the food packaging industry and it also acts as a driving force for the development of new and improved concepts of packaging technology. It is in order to meet these needs that intelligent packaging can be applied. This article presents a generation of packaging which allows maintaining and even improving the quality of the packaged product, which is an essential advantage particularly in the food industry. The most important advantage resulting from their use is a reduction in the loss of food products due to the extension of their shelf life. Keywords: smart system, trends of packaging, food industry Journal: Czech Journal of Food Sciences Pages: 1-6 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/268/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/268/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0002.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:268-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Henry Okwudili Udeh Author-Workplace-Name: Department of Food Science and Technology, School of Agriculture, University of Venda, Thohoyandou, South Africa Author-Name: Kwaku Gyebi Duodu Author-Workplace-Name: Department of Food Science, Faculty of Natural and Agricultural Sciences, University of Pretoria, Hatfield, South Africa Author-Name: Afam Israel Obiefuna Jideani Author-Workplace-Name: Department of Food Science and Technology, School of Agriculture, University of Venda, Thohoyandou, South Africa Title: Finger millet bioactive compounds, bioaccessibility, and potential health effects - a review Abstract: Finger millet is among minor cereal grains that are underutilised. However, over the years, research interest in the millet has increased owing to its abundance of bioactive compounds. These compounds which include, among others, ferulic acid-rich arabinoxylans or feraxans, ferulic acid, caffeic acid, and quercetin have been associated with certain health promoting properties and have been found bioaccessible in the grain. Following the recent interest in natural curative substances over their synthetic counterparts in the treatment of food dependent diseases, finger millet has shown potential nutraceutical effects. Some important health effects such as antidiabetic, antioxidative, anti-inflammatory and antimicrobial properties have been reported in recent trials with the grain. This review emphasises the dietary fibre - arabinoxylan, and phenolic compounds of finger millet and their properties, and further discusses available evidence on their bioaccessibility and bioactivity. The information presented will further explore the potential of finger millet utilisation, its bioactive compounds, bioaccessibility, and potential health benefits, in view of stimulating further research. Keywords: Eleusine coracana, arabinoxylan, phenolic acids, flavonoids, bioactivity Journal: Czech Journal of Food Sciences Pages: 7-17 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/206/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/206/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0003.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:206-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Jana Smolová Author-Workplace-Name: Dairy Research Institute, Prague, Czech Republic Author-Name: Irena Němečková Author-Workplace-Name: Dairy Research Institute, Prague, Czech Republic Author-Name: Marcela Klimešová Author-Workplace-Name: Dairy Research Institute, Prague, Czech Republic Author-Name: Zdeněk Švandrlík Author-Workplace-Name: Dairy Research Institute, Prague, Czech Republic Author-Name: Marie Bjelková Author-Workplace-Name: Agritec Plant Research Ltd., Šumperk, Czech Republic Author-Name: Vladimír Filip Author-Workplace-Name: Department of Dairy, Fat and Cosmetics, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Author-Name: Jan Kyselka Author-Workplace-Name: Department of Dairy, Fat and Cosmetics, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Title: Flaxseed varieties: composition and influence on the growth of probiotic microorganisms in milk Abstract: The influence of flaxseed variety composition on probiotics (Lactobacillus acidophilus, Lb. helveticus, Bifidobacterium sp.) was determined. The varieties were added into milk in four forms: whole seed, ground seed, meal, and oil. The fermentation of all samples was performed under the same conditions (37°C, 18 h) and then the count of probiotics and the concentration of formed organic acids were determined. The flaxseed meal does not seem to have any significant prebiotic effect. However, our results suggest that the flaxseed oil from varieties with a high level of ALA could improve bacterial survival in milk during storage at 4°C under acidic pH. Keywords: flaxseed, α -linolenic acid, probiotic bacteria, flaxseed oil, fermentation profiles Journal: Czech Journal of Food Sciences Pages: 18-23 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/356/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/356/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0004.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:356-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Jiaju Ma Author-Workplace-Name: Food Safety Laboratory, Ocean University of China, Qingdao, P.R. China Author-Name: Tushar Ramesh Pavase Author-Workplace-Name: Food Safety Laboratory, Ocean University of China, Qingdao, P.R. China Author-Name: Zhen-Xing Li Author-Name: Hong Lin Author-Workplace-Name: Food Safety Laboratory, Ocean University of China, Qingdao, P.R. China Title: Optimisation of an extraction technique of fish allergens suitable for detection and diagnosis Abstract: An optimised protocol for the extraction of allergenic proteins in fish was developed. Twelve existing or modified extraction buffers were evaluated based on the amount and quality of obtained 12 kDa IgG-binding protein (major fish allergen parvalbumin) by SDS-PAGE, immunoblotting, and ELISA. The results indicated that using DL-Dithiothreitol during the extraction process, the stability and functionality of the final extract were significantly increased. Solution 3 (containing Tris-HCl, Glycine, and DL-Dithiothreitol) yielded the highest amount of parvalbumin. The extract also induced a higher allergenic reactivity to the three tested human sera by immunoblotting. The results indicated that solution 3 provided better results in fish allergen detection and diagnosis. In conclusion, our study discovered and established solution 3 (Tris-HCl + Glycine + DTT) as the most potential buffer to overcome the conventional allergen extraction buffer and therefore it is highly recommended as a substitute optimised extraction buffer. Keywords: parvalbumin, purification, ELISA, immunoblotting Journal: Czech Journal of Food Sciences Pages: 24-31 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/578/2015-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/578/2015-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0005.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:578-2015-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Prodpran Pengnoi Author-Workplace-Name: Microbiology Section, Division of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand, Author-Name: Rapeepun Mahawan Author-Workplace-Name: Microbiology Section, Division of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand, Author-Name: Chartchai Khanongnuch Author-Name: Saisamorn Lumyong Author-Workplace-Name: Microbiology Section, Division of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand, Author-Workplace-Name: Lanna Rice Research Center, Chiang Mai University, Chiang Mai, Thailand, 3Division of Biotechnology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand Title: Antioxidant properties and production of monacolin k, citrinin, and red pigments during solid state fermentation of purple rice (Oryzae sativa) varieties by Monascus purpureus Abstract: This study aims to evaluate the effects of various purple rice varieties on the production of monacolin K, citrinin, and red pigments by Monascus purpureus CMU002U (UV-mutant strain) and their antioxidant properties. The lowest value of citrinin concentration (132 ppb) was found in the SSF of the Na variety, which passed the standards of Japan, Taiwan, and European Union. The high monacolin K (13 482 ppm) and red pigment (388.25 units/g) levels were obtained from the fermented Doi Muser variety. The lowest IC50 value of the DPPH assay was found in the extract of fermented Doi Saked variety. An investigation of temperature shifting of the SSF for the Doi Muser variety indicated that the incubation at 30°C for 5 days, followed by 25°C until 30 days, yielded the highest value of monacolin K (35 292 ppm) production. These results demonstrated that fermented purple rice has a high potential to be developed as a new food supplement. Keywords: red mould rice, functional foods, health foods, temperature shifting, toxin Journal: Czech Journal of Food Sciences Pages: 32-39 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/154/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/154/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0006.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:154-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Wenlong Wei Author-Workplace-Name: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, HaiDian District, Beijing, P.R. China Author-Name: Jinhua Li Author-Workplace-Name: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, HaiDian District, Beijing, P.R. China Author-Name: Linfang Huang Title: Discrimination of producing areas of Astragalus membranaceus using electronic nose and UHPLC-PDA combined with chemometrics Abstract: Electronic nose (E-nose) and ultra-high-performance liquid chromatography (UHPLC) were simultaneously developed for quality evaluation and diversity research of A. mongholicus. Instrumental data were subjected to principal component analysis (PCA) and discriminant factor analysis (DFA) to rapidly distinguish A. mongholicus derived from different main producing regions in China. E-nose results showed that A. mongholicus that originated from main producing areas (Gansu, Shanxi, and Inner Mongolia in China) could be accurately classified into three groups through PCA and DFA. The response values of samples from Inner Mongolia and Shanxi were similar, and better than those of the samples from Gansu. Identification by the E-nose was verified through UHPLC analysis, and the content of the main ingredient was consistent with the response value of A. mongholicus. In conclusion, E-nose and UHPLC combined with chemometrics can be used as reliable techniques to distinguish the geographic origins of A. mongholicus effectively, and evaluate the quality of traditional Chinese herbs. Keywords: E-nose, Astragalus mongholicus, astragaloside IV, campanulin, UHPLC Journal: Czech Journal of Food Sciences Pages: 40-47 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/126/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/126/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0007.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:126-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Lucia Padalino Author-Workplace-Name: University of Foggia, Services Center of Applied Research, Foggia, Italy Author-Name: Amalia Conte Author-Workplace-Name: University of Foggia, Services Center of Applied Research, Foggia, Italy Author-Name: Lucia Lecce Author-Workplace-Name: University of Foggia, Services Center of Applied Research, Foggia, Italy Author-Name: Desislava Likyova Author-Workplace-Name: University of Foggia, Services Center of Applied Research, Foggia, Italy Author-Name: Vincenzo Sicari Author-Workplace-Name: Mediterranean University of Reggio Calabria, Agricultural Department, Reggio Calabria, Italy Author-Name: Teresa Maria Pellicanò Author-Workplace-Name: Mediterranean University of Reggio Calabria, Agricultural Department, Reggio Calabria, Italy Author-Name: Marco Poiana Author-Workplace-Name: Mediterranean University of Reggio Calabria, Agricultural Department, Reggio Calabria, Italy Author-Name: Matteo Alessandro Del Nobile Title: Functional pasta with tomato by-product as a source of antioxidant compounds and dietary fibre Abstract: Tomato peels are abundant by-products of tomato processing and therefore represent a cost of disposal and an impact on the environment. For this reason, the aim of the present study was to valorise tomato peels to enrich pasta, being these ingredients still rich in antioxidants like carotenoids that are well-known to protect against degenerative diseases. To the aim of the work, in the first step, tomato peel flour was added to wholemeal flour in different amounts until the overall quality of cooked pasta reached its acceptability threshold (tomato peel flour at 15% w/w of semolina weight). Even though the pasta enriched with tomato peels showed high levels of carotenoids and dietary fibre, lower sensory scores for elasticity, odour, and firmness were recorded than in the control. Therefore, the second step was aimed to improve the sensory quality of the 15% enriched spaghetti by means of proper addition of hydrocolloids. Final results confirmed the ability of the structuring agents to enhance adhesiveness and bulkiness of pasta, without compromising other physical and chemical properties. Keywords: food by-products, durum wheat, enriched pasta, pasta quality, eco-friendly processing Journal: Czech Journal of Food Sciences Pages: 48-56 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/171/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/171/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0008.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:171-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Mingzhe Pan Author-Workplace-Name: College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, P.R. China Author-Workplace-Name: College of Food Science, Shenyan Agricultural University, Shenyan, Liaoning, P.R. China Author-Name: Xianjun Meng Author-Workplace-Name: College of Food Science, Shenyan Agricultural University, Shenyan, Liaoning, P.R. China Author-Name: Lianzhou Jiang Author-Workplace-Name: College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, P.R. China Author-Name: Dianyu Yu Author-Workplace-Name: College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, P.R. China Author-Name: Tianyi Liu Author-Workplace-Name: College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, P.R. China Title: Effect of cosolvents (polyols) on structural and foaming properties of soy protein isolate Abstract: Effect of polyols (mannitol, sorbitol, and xylitol) at three concentrations (5, 10, and 15% w/w) on the structure of soy protein isolates (SPI) was investigated. Changes in foaming properties of SPI were then examined with the addition of polyols at different concentrations. The interactions between SPI and polyols resulted in a substantial decrease in protein surface hydrophobicity and intrinsic tryptophan fluorescence intensity, along with the covering of tyrosine. Furthermore, circular dichroism (CD) spectroscopy of SPI suggested that a more ordered and compact conformation was induced by polyols. Consequently, these structural changes led to lower foamability of SPI. An increase in the viscosity of SPI suspension seemed to be advantageous for improving the foam stability of SPI. Keywords: soy protein isolates (SPI), polyols, structural conformation, foam Journal: Czech Journal of Food Sciences Pages: 57-66 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/35/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/35/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0009.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:35-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Evžen Šárka Author-Workplace-Name: Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Author-Name: Miroslava Kubová Author-Workplace-Name: Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Author-Name: Iva Wiege Author-Workplace-Name: Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Author-Name: Pavel Horák Author-Workplace-Name: Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic Author-Name: Petra Smrčková Author-Workplace-Name: Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Author-Name: Václav Dvořáček Author-Workplace-Name: Crop Research Institute, Prague, Czech Republic Author-Name: David Chena Author-Workplace-Name: Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Title: Two resistant starches applied in bread Abstract: Resistant starch (RS), which is inaccessible to human digestive enzymes, is fermented in the colon, producing short-chain fatty acids which have beneficial effects on the human health. Both laboratory-prepared acetylated starch (AS) (degree of substitution 0.82) and Hi-maize commercial starch were tested as additives to bread formulations (recipes). The quality of composites prepared from commercial wheat flour and 5-25% of the added starch was identified by an RVA analyser and the Mixolab rheological test. The bread volume, stiffness (durability), and sensory parameters were evaluated. The addition of 15% Hi-maize® caused a worse appearance, lower volume, and a light colour of the crust. On the other hand, it increased RS content to 5%. The substitution of 5% wheat flour with AS proved to be the most suitable, as the bread was highly appraised by consumers, the retrogradation of starch decreased, and RS content was 2.4%, approximately twice that of the bread without any starch addition. Keywords: bread, additives, Mixolab, baking quality, acetylated starch, high-amylose starch, starch digestion Journal: Czech Journal of Food Sciences Pages: 67-72 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/343/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/343/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0010.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:343-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Gordana Šimić Author-Name: Daniela Horvat Author-Workplace-Name: Agricultural Institute Osijek, Osijek, Croatia Author-Name: Krešimir Dvojković Author-Workplace-Name: Agricultural Institute Osijek, Osijek, Croatia Author-Name: Ivan Abičić Author-Workplace-Name: Agricultural Institute Osijek, Osijek, Croatia Author-Name: Marija Viljevac Vuletić Author-Workplace-Name: Agricultural Institute Osijek, Osijek, Croatia Author-Name: Marijana Tucak Author-Workplace-Name: Agricultural Institute Osijek, Osijek, Croatia Author-Name: Alojzije Lalić Author-Workplace-Name: Agricultural Institute Osijek, Osijek, Croatia Title: Evaluation of total phenolic content and antioxidant activity of malting and hulless barley grain and malt extracts Abstract: Nine malting and six hulless barley varieties were evaluated for their grain characteristics, β-glucans, total phenolic contents, and corresponding antioxidant activities determined by DPPH radical scavenging method. Samples were malted to compare malt quality properties between hulled and hulless types of barley and to estimate the influence of malting process on total phenolics. The highest levels of total phenolics and antioxidant activity were observed in the hulless barley lines GZ-191 and GZ-186. Malts were found to have higher antioxidant activity and contents of total phenolics than their corresponding barley. Results from the present study showed that hulless barley lines had on average higher protein, starch, β-glucan, malt extract content, and wort viscosity, but lower Kolbach Index and malt friability when compared to hulled malting varieties. The analysis of fifteen different barley samples shows that the barley type has an influence on both the total phenolic content and the antioxidant activity, as well as on the malting performance of hulless and hulled barley. Keywords: cereal crop, quality, bioactive, DPPH, β -glucan Journal: Czech Journal of Food Sciences Pages: 73-78 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/144/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/144/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0011.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:144-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Ivan Švec Author-Name: Marie Hrušková Author-Workplace-Name: Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Author-Name: Barbora Babiaková Author-Workplace-Name: Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic Title: Chia and teff as improvers of wheat-barley dough and cookies Abstract: Basic wheat-barley flour premixes were blended at ratios 70 : 30 and 50 : 50 (w/w), and white or dark types of wholemeal chia and teff replaced 5 or 10% of these bases. All non-traditional plant materials increased farinograph water absorption up to 10% in total, and with likely dilution of the dough gluten network, their addition increased the degree of dough softening up to twice. Physicomechanical properties of non-fermented dough were changing stepwise, mainly in terms of rising dough elasticity. Higher elasticity of wheat-barley dough was reflected in better both specific volume and spread ratio of cut-out cookies. Further recipe modification by wholemeal chia and teff flours enhanced these positive changes; cookie volumes based on the wheat-barley premix 50 : 50 were about 22% higher than their counterparts from the premix 70 : 30. For both attributes of cookie quality, somewhat higher values were observed for dark variants of wholemeal chia and teff. Moreover, the spread ratio of cookies containing teff types reached higher values compared to chia ones. Characteristic barley flour flavour could be less acceptable for common consumers; both wholemeal chia and teff flours were able to mask that by-taste. Keywords: composite flour, non-traditional plant material, baking test, cookie, PCA Journal: Czech Journal of Food Sciences Pages: 79-88 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/123/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/123/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0012.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:123-2016-CJFS Template-Type: ReDIF-Article 1.0 Author-Name: Qun Yu Author-Workplace-Name: College of Food Science, Hainan University, Haikou, P.R. China Author-Name: Chuan Li Author-Name: Zhenhua Duan Author-Workplace-Name: College of Food Science, Hainan University, Haikou, P.R. China Author-Name: Bing Liu Author-Workplace-Name: College of Food Science, Hainan University, Haikou, P.R. China Author-Name: Weiwen Duan Author-Workplace-Name: Institue of Food Research, Hezhou University, Hezhou, P.R. China Author-Name: Feifei Shang Author-Workplace-Name: Institue of Food Research, Hezhou University, Hezhou, P.R. China Title: Ultrasonic microwave-assisted extraction of polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans Abstract: Polyphenols, flavonoids, triterpenoids, and vitamin C from Clinacanthus nutans were extracted by an ultrasonic microwave-assisted method. The optimal extraction conditions were established in distilled water, solid-liquid ratio 1 : 55 g/ml, irradiation power 90 W, and extraction cycle with 75 seconds. Results revealed that the solid-liquid ratio exerted a significant effect on polyphenols, whereas the irradiation power played a key role in the extraction of flavonoids, triterpenoids, and vitamin C. Under these conditions the extraction yield of each component was: polyphenols 8.893, flavonoids 25 936, triterpenoids 16 789, and vitamin C 0.166 mg/g. These results showed that the ultrasonic microwave-assisted extraction was an efficient technology to extract bioactive substances from Clinacanthus nutans and Clinacanthus nutans could potentially be a source of natural antioxidants. Keywords: herbaceous plant, bioactive substance, ultrasonic microwave-assisted extraction, yield Journal: Czech Journal of Food Sciences Pages: 89-94 Volume: 35 Issue: 1 Year: 2017 DOI: 10.17221/82/2016-CJFS File-URL: http://cjfs.agriculturejournals.cz/doi/10.17221/82/2016-CJFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/cjf-201701-0013.txt Handle: RePEc:caa:jnlcjf:v:35:y:2017:i:1:id:82-2016-CJFS