scholarly journals Corn Tassel: A New Source of Phytochemicals and Antioxidants Potential for Value-added Products Development in Agro-industry

2018 ◽  
Author(s):  
Prakasit Duangpapeng ◽  
Danupol Ketthaisong ◽  
Khomsorn Lomthaisong ◽  
Kamol Lertrat ◽  
Marvin Paul Scott ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Developmental Stages ◽  
Value Added ◽  
Food Supplement ◽  
Carotenoid Content ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Corn Seed ◽  
Development Stages ◽  
Pollen Shed

Corn tassel is a by-product from hybrid corn seed production and a new source of phytochemicals including compounds with antioxidant activity. Four tassel development stages were evaluated in eight commercial corn varieties. Corn varieties and tassel developmental stages showed significant variations (P0.01) for all parameters. Total phenolic content and antioxidant activity were highest in field corn. KGW1, a purple waxy variety, had the highest anthocyanin content and carotenoid content at tassel development stages at 50% and 75% of pollen shed, whereas the tassel developmental stages at the 1st day of pollen shed and 50% of pollen shed had the highest of anthocyanin yield and carotenoid yield. The most suitable time for tassel harvest should be between the 1st day of pollen shed to 50% of pollen shed. Phytochemicals and antioxidants that are extracted from corn tassel can be used as a functional food supplement, natural pharmaceuticals and cosmetic products.

scholarly journals Corn Tassel: A New Source of Phytochemicals and Antioxidant Potential for Value-Added Product Development in the Agro-Industry

Agronomy ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 242 ◽  
Author(s):  
Prakasit Duangpapeng ◽  
Danupol Ketthaisong ◽  
Khomsorn Lomthaisong ◽  
Kamol Lertrat ◽  
Marvin Scott ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Value Added ◽  
Antioxidant Potential ◽  
Carotenoid Content ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Total Phenolic ◽  
Total Anthocyanin ◽  
Carotenoid Concentration ◽  
Development Stages ◽  
Pollen Shed

Corn tassel is a byproduct from hybrid corn seed production. It is also a new source of phytochemicals, including compounds with antioxidant activity. The aim of this study was to evaluate the phytochemical content and antioxidant potential of different corn tassel development stages. A 4 × 8 factorial experiment consisting of four tassel development stages and eight commercial corn varieties was carried out with a randomized complete block design with three replications. Data were collected for tassel weight, concentration and yield of total phenolics, total anthocyanin concentration, total carotenoid concentration, and antioxidant activity, as determined by the 2,2-diphenyl-1-picrylhydrazyl(DPPH•) radical scavenging assay and Trolox equivalent antioxidant capacity(TEAC) assays. Corn varieties and tassel developmental stages showed significant variations (p ≤ 0.01) in all parameters. P4546 presented the best variety for the total phenolic content (15.8 mg GAE/g DW sample), whereas Hibrix3 had the highest phenolic yield (6.78 kg GAE/ha). KGW1, a purple waxy variety, had the highest anthocyanin content (1528.0 µg CGE/g DW sample), anthocyanin yield (753.0 g CGE/ha), carotenoid content (74.9 µg/g DW sample), and carotenoid yield (53.7 g/ha). P4546 had the highest antioxidant activity: 92.4% for DPPH• and 76.1 µmol TE/g DW sample for the TEAC assay, respectively. The most appropriate time for tassel harvest to ensure the production of phytochemicals with high antioxidant activity should be from the 1st day of pollen shed until 50% of pollen shed. Phytochemicals and antioxidants that are extracted from corn tassel can be used as a functional food supplement, as natural pharmaceuticals, and in cosmetic products.

scholarly journals Genotypic Variation in Anthocyanins, Phenolic Compounds, and Antioxidant Activity in Cob and Husk of Purple Field Corn

Agronomy ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 271 ◽  
Author(s):  
Ponsawan Khamphasan ◽  
Khomsorn Lomthaisong ◽  
Bhornchai Harakotr ◽  
Danupol Ketthaisong ◽  
Marvin Scott ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Block Design ◽  
Genotypic Variation ◽  
Selection Criterion ◽  
Value Added ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Color Parameters ◽  
Field Corn

Information on phytochemicals in the cob and husk of field corn is important for the use of corn waste in the production of value-added corn products. The objectives of this study were to evaluate the variation in monomeric anthocyanin content (MAC), total phenolic content (TPC), and antioxidant activity, as determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity and Trolox equivalent antioxidant capacity (TEAC) in 53 purple field corn genotypes, and to study the correlations of these traits with color parameters. Fifty-three corn genotypes were planted in a randomized complete block design with three replications in two locations in the dry season of 2015/2016. The effects of genotype, location, and the interaction between genotype and location were significant for most characters. Genotypic variation contributed to a large portion of the total variance for all traits, accounting for 63.9–86.9%. Corn genotypes were classified into six groups based on MAC, TPC, and antioxidant activity determined by the DPPH and the TEAC methods. The highest MAC, TPC, and antioxidant activity were obtained in TB/KND//PF3 and TB/KND//PF8 for husk, and only TB/KND//PF8 for cob. They should be used as parental lines to develop corn varieties with high phytochemicals. Chroma (C*) and hue (H°) of color parameters could potentially be used as an indirect selection criterion for improving MAC, TPC, and antioxidant activity in cob. The information is useful for the improvement of phytochemicals in cob and husk of field corn.

scholarly journals Value-Added Lager Beer Enriched with Eggplant (Solanum melongena L.) Peel Extract

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 731 ◽  
Author(s):  
Georgiana Horincar ◽  
Elena Enachi ◽  
Carmen Bolea ◽  
Gabriela Râpeanu ◽  
Iuliana Aprodu
Keyword(s):  
Antioxidant Activity ◽  
Radical Scavenging ◽  
Solanum Melongena ◽  
Value Added ◽  
Linear Increase ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Biological Value ◽  
Beer Production ◽  
Peel Extract

Manufacturing beer with a high biological value requires identifying new methods for increasing the health-enhancing compounds level. The aim of this study was to increase the biological value of beer by adding antioxidant-rich eggplant (Solanum melongena L.) peel extract (EPE). The total phenolic content (TPC), total flavonoid content (TFC), and total monomeric anthocyanin content (TMA) were determined. Moreover, the antioxidant activity was evaluated by different radical scavenging assays. The addition of different levels of EPE resulted in a significant increase of TPC and TFC of beer samples from 0.426 to 0.631 mg GAE/mL, and from 0.065 to 0.171 mg CE/mL, respectively. The EPE-supplemented beer samples developed a reddish color because of the presence of anthocyanin pigments. The TMA content of beer varied from 0.011 to 0.083 mg D3G/mL with the level of added EPE. The HPLC analysis indicated that the anthocyanins prevailing in the eggplant peels were delphinidin-3-rutinoside, delphininidin-3-glucoside and delphinidin-3-rutinoside-5-glucoside. The radical scavenging assays indicated a linear increase of the antioxidant activity following EPE addition, without altering the physicochemical parameters of the beer. These results are promising for using the EPE as a functional ingredient for beer production.

Preliminary Phytochemical Screening, Evaluation of the Phenolic Compositions and Antioxidant Activities of Four Iranian Alyssum Species

2020 ◽  
Vol 16 (5) ◽  
pp. 581-587
Author(s):  
Pooran Golkar ◽  
Ahmad Fotoohi ◽  
Claudio Frezza
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Beta Carotene ◽  
Biochemical Properties ◽  
Carotenoid Content ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Phytochemical Screening ◽  
Methanolic Extracts ◽  
Lobularia Maritima

Background: Alyssum L. is a genus of herbaceous perennial or annual plants belonging to the Brassicaceae family. Little is known about biochemical properties of Alyssum species, specially endemics to Iran. In particular, the species were A. homolocarpum (Fisch. & C.A.Mey.) Boiss., A. lepidotum Boiss., A. maritimum (L.) Lam. (now syn. of Lobularia maritima (L.) Desv.) and A. simplex Rudolph. and eight accessions were studied. These diverse species accessions were collected in six different areas. Materials and Methods: In this work, the Total Phenolic Content (TPC), the Total Flavonoid Content (TFD), the Total Flavonol Content (TFL), the Carotenoid content (Car) and the Anthocyanin content (Ant) of the leaf methanolic extracts of four Alyssum L. species collected in Iran, were assessed. The antioxidant activity assay for every extract obtained from the eight accessions was also carried out according to three distinct methodologies including three different methods including: DPPH, Beta carotene/ linoleic acid and phosphomolibdate assays. Results: The highest TPC, TFD and TFL values were separately observed in two different accessions of A. lepidotum whereas the highest carotenoid content was observed in one accession of A. homolocarpum and the highest anthocyanin content was observed in A. maritimum. Different results were observed for different methodolies for antioxidant evaluations methods and some of them were found to have values, expressed in mg/mL, much lower with respect to the control. The least DPPH activity and the highest total antioxidant activity with phosphomolybdate assay was found in A. lepidotum. Conclusion: The preliminary phytochemical screening and the evaluation of their antioxidant activities were reported here for the first time for Iranian Alyssum species. The findings eventually recommends, the use of those accessions in the ethnopharmacological and nutraceutical fields.

scholarly journals Large Variation Found in the Phytochemical and Antioxidant Activity of Peach and Plum Germplasm

2007 ◽  
Vol 132 (3) ◽  
pp. 334-340 ◽  
Author(s):  
Marcia Vizzotto ◽  
Luis Cisneros-Zevallos ◽  
David H. Byrne ◽  
David W. Ramming ◽  
W.R. Okie
Keyword(s):  
Antioxidant Activity ◽  
Skin Color ◽  
Prunus Persica ◽  
Phenolic Content ◽  
Carotenoid Content ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Phytochemical Content ◽  
Phenolic Contents ◽  
Wide Range

Nineteen peach [Prunus persica (L.) Batsch] genotypes and 45 plum (Prunus salicina Erhr. and hybrids) genotypes with different flesh and skin color were analyzed for their antioxidant content and activity. Anthocyanin content, phenolic content, and antioxidant activity were higher in red-flesh than in light-colored flesh peaches. Carotenoid content was higher in yellow-flesh peaches than in light-colored ones. Red-flesh plums generally had higher anthocyanin and phenolic contents than the other plums but not necessarily greater antioxidant capacity. The total phenolic content had the most consistent and highest correlation with antioxidant activity, indicating that it is more important in determining the antioxidant activity of peaches and plums than are the anthocyanin or carotenoid contents. In general, the wide range of phytochemical content and antioxidant activity found indicates that the genetic variability present can be used to develop cultivars with enhanced health benefits.

scholarly journals Brewing By-Product Upcycling Potential: Nutritionally Valuable Compounds and Antioxidant Activity Evaluation

Antioxidants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 165
Author(s):  
Elisabetta Bravi ◽  
Giovanni De Francesco ◽  
Valeria Sileoni ◽  
Giuseppe Perretti ◽  
Fernanda Galgano ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Acids ◽  
Liquid Waste ◽  
Value Added ◽  
Total Phenolic ◽  
Antioxidant Compounds ◽  
Brewing Industry ◽  
Antioxidant Power ◽  
Spent Grains ◽  
By Products

The brewing industry produces high quantities of solid and liquid waste, causing disposal issues. Brewing spent grains (BSGs) and brewing spent hop (BSH) are important by-products of the brewing industry and possess a high-value chemical composition. In this study, BSG and BSH, obtained from the production process of two different types of ale beer (Imperial red and Belgian strong beer) were characterized in terms of valuable components, including proteins, carbohydrates, fat, dietary fiber, β-glucans, arabinoxylans, polyphenols, and phenolic acids, and antioxidant activity (Ferric Reducing Antioxidant Power Assay (FRAP), 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS)). Significant concentrations of total polyphenols were observed in both BSH and BSG samples (average of about 10 mg GAE/g of dry mass); however, about 1.5-fold higher levels were detected in by-products of Belgian strong ale beer compared with Imperial red. Free and bound phenolic acids were quantified using a validated chromatographic method. A much higher level of total phenolic acids (TPA) (about 16-fold higher) was found in BSG samples compared with BSHs. Finally, their antioxidant potential was verified. By-products of Belgian strong ale beer, both BSG and BSH, showed significantly higher antioxidative capacity (about 1.5-fold lower inhibitory concentration (IC50) values) compared with spent grains and hop from the brewing of Imperial red ale. In summary, BSG and BSH may be considered rich sources of protein, carbohydrates, fiber, and antioxidant compounds (polyphenols), and have the potential to be upcycled by transformation into value-added products.

scholarly journals Biocomponents and Antioxidant Activity of Ribes khorasanicum

2018 ◽  
Vol 3 (3) ◽  
pp. 99-103 ◽  
Author(s):  
Mohammad Ehsan Taghavizadeh Yazdi ◽  
Jalil Khara ◽  
Mohammad Reza Housaindokht ◽  
Hamid Reza Sadeghnia ◽  
Sedigheh Esmaeilzadeh Bahabadid ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Sugar Content ◽  
Antioxidant Properties ◽  
Dry Weight ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Bioactive Components ◽  
Total Anthocyanin ◽  
Total Anthocyanin Content ◽  
Biological And Medical Applications

Currently, there have been lots of interests in phytochemicals as bioactive components. The roles of fruit, vegetables, and red pigments in preventing diseases have been partly accredited to the antioxidant properties of their constituent polyphenols, flavonoid, anthocyanins, and etc. Biochemistry parameters including the relative levels of antioxidant activity, total phenolic content, total flavonoid, total anthocyanin, soluble and insoluble sugar content of Ribes khorasanicum, have been calculated in this project. The total anthocyanin content of the investigated Ribes khorasanicum measured to be 62.9 mg/g in dry weight, while displaying high levels when compared to other components, which indicates that the anthocyanin content was the predominant antioxidant components in the investigated plant. This particular plant has the potential to serve as the important source of antioxidant that can be utilized in different biological and medical applications.

scholarly journals Antioxidant Activity, Sugar Content and Phenolic Profiling of Blueberries Cultivars: A Comprehensive Comparison

2018 ◽  
Vol 46 (2) ◽  
pp. 639-652 ◽  
Author(s):  
Onur Tolga OKAN ◽  
İlhan DENİZ ◽  
Nurettin YAYLI ◽  
İhsan Güngör ŞAT ◽  
Mehmet ÖZ ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Antioxidant Activities ◽  
Sugar Content ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Total Anthocyanin Content ◽  
The World ◽  
Comprehensive Comparison

Commercial blueberry production has been a viable industry throughout the world for 95 years; because of blueberry is a good source of antioxidant. Blueberries are especially rich in anthocyanin, a flavonoid with potent antioxidant capacity. The aim of this study was to compare the phenolic quantities, antioxidant activities, anthocyanin, sugar and phenolic compounds of blueberries produced in Turkey with those of similar blueberry varieties produced around the world. As a result of the conducted analysis, the total phenolic content (TPC) amount found in the berries was 77.26-215.12 mg GAE/100 g, the total flavonoid content (TFC) was 30.44-91.69 mg QE/100 g and the total anthocyanin content (TAC) was 43.03-295.06 mg c3-GE/100 g. Examining the antioxidant activities of the berries, DPPH between 1.10-5.65 mg/ml, FRAP between 454.93-36832.96 µmol troloks/100 g, β-Carotene between 40.66-86.48%. It was determined that the natural berries contained much more phenolic compounds and higher antioxidant activity than that of the cultivars The result of HPLC analysis, chlorogenic acid is determined to be the dominant compound in all berries. Furthermore, fructose and glucose are found in all fruits in different quantities while sucrose is found in certain varieties of berries as well. At the end of the performed study the data indicate that wild and cultivars of blueberries are rich sources of antioxidants for local as well international industries importing this fruit for food processing and enormous products.

scholarly journals The Content of Selected Minerals, Bioactive Compounds, and the Antioxidant Properties of the Flowers and Fruit of Selected Cultivars and Wildly Growing Plants of Sambucus nigra L.

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 876 ◽  
Author(s):  
Karolina Młynarczyk ◽  
Dorota Walkowiak-Tomczak ◽  
Halina Staniek ◽  
Marcin Kidoń ◽  
Grzegorz P. Łysiak
Keyword(s):  
Antioxidant Activity ◽  
Mineral Content ◽  
Antioxidant Properties ◽  
Absorption Spectrometry ◽  
Wild Plants ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Spectrophotometric Methods ◽  
Bioactive Properties ◽  
High Concentrations

This study compared the mineral content and bioactive properties of flowers and fruit coming from wild elderberry plants with those of flowers and fruit harvested from elderberry cultivars grown in an orchard. Elderberry fruit and flowers were analyzed for the content of selected minerals, phenolic compounds, and anthocyanins, as well as for antioxidant activity. Mineral content was determined by the atomic absorption spectrometry method, while antioxidant activity and the content of polyphenols and anthocyanins were determined by spectrophotometric methods. Flowers were found to contain more total ash and much higher content of most of minerals, except magnesium which was present in high concentrations in fruit. Fruit showed significantly higher antioxidant activity than flowers, whereas the total phenolic content varied depending on the growing location or cultivar. The material obtained from selected cultivars growing in an orchard had higher antioxidant activity and polyphenol and anthocyanin content than the material obtained from wild plants. Fruit of the ”Haschberg” cultivar and flowers of the ”Sampo” cultivar had the best bioactive properties of the studied samples.

scholarly journals Phytochemical Composition and Biological Activities of Selected Wild Berries (Rubus moluccanusL.,R. fraxinifoliusPoir., andR. alpestrisBlume)

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Mohd Fadzelly Abu Bakar ◽  
Nur Amalina Ismail ◽  
Azizul Isha ◽  
Angelina Lee Mei Ling
Keyword(s):  
Salmonella Enteritidis ◽  
Biological Activities ◽  
Antibacterial Activities ◽  
Carotenoid Content ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Methanol Extracts ◽  
Naturally Occurring ◽  
Dpph Scavenging ◽  
Gallic Acid Equivalent

Berries, from the genusRubus, are among the vital components in a healthy diet. In this study, 80% methanol extracts from the three wildRubusspecies (Rubus moluccanusL.,Rubus fraxinifoliusPoir., andRubus alpestrisBlume) were evaluated for their phytochemical contents (total phenolics, flavonoid, anthocyanin, and carotenoid content), antioxidant (DPPH, FRAP, and ABTS assays), antiacetylcholinesterase, and antibacterial activities. GC-MS was used for quantification of naturally occurring phytochemicals. The results showed thatR. alpestriscontained the highest total phenolic [24.25±0.1 mg gallic acid equivalent (GAE)/g] and carotenoid content [21.86±0.63 mgβ-carotene equivalents (BC)/g], as well as the highest DPPH scavenging and FRAP activities. The highest total flavonoid [18.17±0.20 mg catechin equivalents (CE)/g] and anthocyanin content [36.96±0.39 mg cyanidin-3-glucoside equivalents (c-3-gE)/g] have been shown byR. moluccanus. For antibacterial assays,R. moluccanusandR. alpestrisextracts showed mild inhibition towardsBacillus subtilis,Staphylococcus aureus,Escherichia coli, andSalmonella enteritidis. Anticholinesterase activity for all extracts was in the range of 23–26%. The GC-MS analysis revealed the presence of at least 12, 21, and 7 different organic compounds in 80% methanol extracts ofR. alpestris,R. moluccanus, andR. fraxinifolius, respectively, which might contribute to the bioactivity.

Sign in / Sign up

Export Citation Format

Share Document