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Saturday, May 2, 2020 | History

2 edition of Phenolic compounds in Bartlett pears and their relation to discoloration of the canned product found in the catalog.

Phenolic compounds in Bartlett pears and their relation to discoloration of the canned product

Carmen Ford Phillips

Phenolic compounds in Bartlett pears and their relation to discoloration of the canned product

  • 220 Want to read
  • 17 Currently reading

Published .
Written in English

    Subjects:
  • Canning and preserving.,
  • Pear.,
  • Canned fruit.,
  • Phenols.

  • Edition Notes

    Statementby Carmen Ford Phillips.
    The Physical Object
    Pagination54 leaves, bound :
    Number of Pages54
    ID Numbers
    Open LibraryOL14331850M

    phenolic compounds. All wine samples were filter-sterilized. Clarified wines were used as controls, without phenolic compounds. Wine samples were protected against sunlight and stored at 4 ºC. The total phenolic compounds, phenolic acids, flavonoids and flavonols concentrations of the three wines used, were determined in a previous work (14, 20). phenolic content was found in the aqueous extract (± mg/g) and (±) in stem bark and leaves methanol GAE mg/ g respectively. The result of the present study showed that the extract of Madhuca longifolia, which contain highest amount of phenolic compounds which exhibited the greatest antioxidant Size: KB. Table 1 Spectral data of the phenolic compounds in berries Phenolic compounds λ max (nm) [M - H] + (m/z) [MS/MS] (m/z) Retention time (min) 5-Caffeoylquinic acid 3-Caffeoylquinic acid QuercetinO-galactoside Fig. 2 Chromatograms from the HPLC-DAD-MS analysis of phenolic compounds in.   Phenolic compounds (PCs) affect the bread quality and can also affect the other types of end-use food products such as chapatti (unleavened flat bread), now globally recognized wheat-based food product. The detailed analysis of PCs and their biosynthesis genes in diverse bread wheat (Triticum aestivum) varieties differing for chapatti quality have not been by: 2.


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Phenolic compounds in Bartlett pears and their relation to discoloration of the canned product by Carmen Ford Phillips Download PDF EPUB FB2

Phenolic compounds in Bartlett pears and their relation to discoloration of the canned product by Carmen Ford Phillips 1 edition - first published in Not in Library. Flavonoids. According to the degree of hydroxylation and the presence of a C 2-C 3 double bond in the heterocycling pyrone ring, flavonoids can be divided into 13 classes [], the most important being represented by the flavonols, flavanols, flavones, isoflavones, anthocyanidins or anthocyanins and flavanones [].Within these classes there are many structural variations according to the Cited by: Essentially the higher content of phenolic compounds and the antioxidant activity of wholemeal flour, in addition to the higher content of vitamins, mineral substances, phospholipids and fibres, can be an additional favourable factor for human health and a significant reason for its preferable consumption instead of white flours.

Cited by: molecules Review An Overview of Plant Phenolic Compounds and Their Importance in Human Nutrition and Management of Type 2 Diabetes Derong Lin 1,*,†, Mengshi Xiao 1,†, Jingjing Zhao 1,†, Zhuohao Li 1,†, Baoshan Xing 2, Xindan Li 1,†, Maozhu Kong 1,†, Liangyu Li 1,†, Qing Zhang 1, Yaowen Liu 1, Hong Chen 1, Wen Qin 1, Hejun Wu 1 and Saiyan Chen 1 1 College of Food Science, Sichuan File Size: 1MB.

Thirty-four flavonoids and 19 hydroxycinnamates were identified. The main phenolic compounds (based on peak area) in all of the pear skins were arbutin and chlorogenic acid. The remaining phenolics varied widely in area and allowed the pears to be divided into four by: Phenolic compounds can be extracted from plants and then can be added to some foods for their taste, flavor (such as vanillin and eugenol) (Ozcan et al., ), coloring properties and their.

Introduction. Lignocellulose, primarily made up of carbohydrates and lignin, has been billed as the most abundant material on earth (Chandel et al.[])Next to carbohydrates, aromatic compounds are the second most abundant class of organic compounds in nature (Boll et al.[])It has been claimed that aromatic compounds, including phenolics make up about 25% of the earth’s biomass Cited by: Phenolic Compounds in Food: Characterization and Analysis (Food Analysis & Properties) - Kindle edition by Nollet, Leo M.L., Gutierrez-Uribe, Janet Alejandra.

Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Phenolic Compounds in Food: Characterization and Analysis (Food Analysis & Properties).Manufacturer: CRC Press.

The characteristics of polyphenoloxidase in Bartlett pears were investigated. In a citrate-phosphate buffer containing M catechol as the substrate, activity of the pear polyphenoloxidase was. Banana peel is a rich source of phenolic compounds (), with total phenolic content ranging from to 47 mg garlic acid equivalent/g dry matter (mg GAE/g DM) (González-Montelongo et al., a, Hernández-Carranza et al., ).This level is –3 times higher than that recorded in the flesh (Sulaiman et al., ).In comparison with other fruit peels, such as avocado, pineapple, papaya Cited by: The study of biophenolic compounds is supported by the current interest in natural products and the on-going replacement of synthetic antioxidants by natural antioxidants from plant sources.

The importance of phenolic compounds is related to the quality profile of olive and flaxseed products and the use of them in the production of potential Author: Luz Stella Artajo Medina. Phenolic compounds are well known for their health benefits related to antioxidant activity.

In addition, this kind of compounds can be extracted from natural sources, such as olives, grapes, fruits, vegetables, rice, spices, herbs, tea and algae, among others. In this way, these compounds have increased their popularity and, little by little, the consumers are more interested in these Cited by: phenolic compounds found in berries and their beneficial effects on human health.

Phenolics in Berries The main phenolic compounds found in berries include phenolic acids, flavonoids (flavonols, anthocyanins, catechins), stilbenes, hydrolysable and condensed tannins (proanthocyanidins), and lignans (Fig. Berries are known to be rich. Effects of various coatings and antioxidants on peel browning of ‘Bartlett’ pears Fresh ‘Bartlett’ pears in the retail market often show peel browning.

Peel browning of ‘Bartlett’ pears phenolic compounds are normally separated from the PPO enzyme and browning does not occur. - Phenolic compounds were eluted with 2 mL of 90 % methanol. The residue obtained was filtered through a microfilter of µm and was used for the subsequent identification of various phenolic compounds.

Analysis of phenolic compounds from the fruit File Size: KB. Phenolic, non-staining antioxidants - a guide to select the right product Phenolic antioxidants - a historical background At the early beginning of manufacturing rubber goods, the producers were faced with rapid deterioration.

It resulted in either hardening, brittleness or in sickness of the rubber goods. The main sources of phenolic compounds in the diet are fruits and vegetables, including apples and processed apple products. The benefits of phenolic compounds have recently been the subject of much discussion (Manach et al., ; Scalbert et at., ).

Dietary intake of phenolics is estimated to be about one gram per day. Title:Phenolic Compounds as Nutraceuticals or Functional Food Ingredients VOLUME: 23 ISSUE: 19 Author(s):Cristina Caleja, Andreia Ribeiro, Maria Filomena Barreiro and Isabel C.F.R.

Ferreira* Affiliation:Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Braganca, Braganca, Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, IPB, Cited by:   Examples of phenolic influences are manifest in the smell of a rose or the color of its petal.

Most perfumes, many cooking odors, and many chemical smells are phenolic compounds. The purple color of a grape comes from the phenolic malvin. The spicy taste and smell of cinnamon is the phenolic cinnamic acid.

Extraction of Total Phenolic Compounds, Flavonoids, Anthocyanins and Tannins from Grape Byproducts by Response Surface Methodology. Influence of Solid-Liquid Ratio, Particle Size, Time, Temperature and Solvent Mixtures on the Optimization Process OPEN ACCESS FNS terials into bio-fuels, food ingredients and other added value bio-products [1].File Size: 3MB.

Four phenolic compounds (guaiacol, p-cresol, creosol and 2-phenylethanol) have a high odor-impact in Vanilla planifolia flavor (Dignum et al., ). In addition, phenolic compounds (guaiacol, creosol, p-vinyl guaiacol) were identified as key components of Tahitian vanilla flavor bringing some "smoky" notes (Brunschwig et al., ).

Over phenolic compounds have been identified from plant materials. These compounds have been categorized into different groups such as flavonoids, tannins, phenolic acids and coumarins.

Phenolic acids can be further classified into two groups, namely, cinnamic acid derivatives and benzoic acid derivatives, based on their basic carbon. Food databases specifically on phenolic compounds include Phenol-Explorer, USDA-Iowa State University database for isoflavones, USDA database for flavonoids, and USDA database for proanthocyanidins.

The phenolic content in foods can be obtained from these accessible databases. Phenolic Compounds. The family of chemical compounds that are responsible for a wine's color, structure, taste, and antioxidant properties such as tannins and anthocyanins.

A naturally formed group of chemicals based on sulfur that form as a by-product of fermentation or are added to wine due to sulfur dioxide's antioxidant and.

Fruits from genotypes of Vaccinium L., Rubus L., and Ribes L., were analyzed for total anthocyanins (ACY), total phenolics (TPH), and antioxidant capacities as determined by oxygen radical absorbing capacity (ORAC) and ferric reducing antioxidant power (FRAP). Fruit size was highly correlated (r = ) with ACY within Vaccinium corymbosum L., but was not correlated to ACY across eight.

The term phenol refers to a large group of chemical compounds found in plants. These chemicals make up the active substances in many plants and are responsible for controlling the activity of a range of enzymes and cell receptors, thus protecting the plant from bacterial and fungal infections and UV radiation damage.

to be dominant in the early stages of loquat fruit development. Both the concentrations and types of phenolic compounds were high in young fruit but then decreased steadily during growth. However, the concentration of chlorogenic acid increased during ripening and became predominant in ripe fruit.

Sample preparation in the determination of phenolic compounds in fruits Sample preparation in the determination of phenolic compounds in fruits. Antolovich, P. Prenzler, K. Robards and D. Ryan, Analyst, books or book chapters) do not need to formally request permission to reproduce material contained in this article Cited by: Bioactive phenolic compounds in selected fruit peels.

A total of eight phenolic compounds including four flavonoids, were indentified and quantified as shown in Table 2. The results showed that bioactive phenolic compounds varied in different plant tissues.

Phenolic compounds in Ecuadorian fruits Abstract A group of eighteen fruits cultivated in Ecuador were evaluated for their total soluble phenolic compounds and antioxidant activity and attempts were made to identify the group and content of phenolic compounds responsible for the antioxidant activity.

phenolic compounds (FULEKI; RICARDO-DA-SILVA, ). Phenolic compounds have drawn attention not only because of their important role in the development of grape products, but also for their beneficial health effects (O’BYRNE et al., ; BUB et al., ).

They have antioxidant properties and can prevent the oxidative damage of cells. Phenolic compounds in olives Authors contributing to RSC publications (journal articles, books or book chapters) do not need to formally request permission to reproduce material contained in this article provided that the correct acknowledgement is given with the reproduced material.

Cited by: The free radical scavenging activity for red cactus pears was significantly correlated (p ) to the concentration of total phenolic compounds (R 2 = ) and ascorbic acid (R 2 = ). All 18 cultivars of cactus pears studied showed significant chelating activity of ferrous ions.

INTRODUCTION. Statement of the Problem Finger millet [Eleucine coracana (L.) Gaertn.] is a small cereal grain grown in the semi-arid sub-tropical and tropical regions of Africa and Asia where it is one of the cereal staples.

Juices of nine prickly pears (Opuntia spp.) were characterized in terms of color, acidity, sugar content, phenolics, flavonoids, betalains and antioxidant activity and tested in vitro against four cancer cell lines.

The juices had pH´s, acidities and sugar ranging from toto % and 8 to °Brix, respectively. Juices also varied in color from white to purple and contained Cited by: The concentrations of total phenolic compounds are written in Gallic Acid Equivalents (GAE) in units of milligrams of gallic acid per milliliters of juice.

Educational institutes frown upon buying students alcohol, even for scientific purposes, so white and red grape juices were used in this experiment rather than wine to determine the. the highest amount of total phenolics ( mg GAE g-1 fresh product) followed by Satkara ( mg GAE/g fresh product), Indian gooseberry ( mg GAE/g fresh product), star fruit ( mg GAE/ g fresh product) and Ambarella ( mg GAE/g fresh product).File Size: KB.

changes of phenolic acids and anthoc yanins as well as their antioxidant activities during bread production. Results and Discussion Free, Bound, and Total Phenolic Content Using the Folin-Ciocalteau Method Table 1 summarizes the amount of soluble free, insoluble bound, and to tal phenolic cont ent at different.

of the major sources of phenolic compounds among different fruits (Maxcheix et al., ). The phenolic compounds in Vitis vinifera include phenolic acids, stilbenes, and flavonoids, which include flavonols, flavanols, and anthocyanins, and play an important role in the quality of grapes and wines (Downey et al., ).

Anthocyanins are directly. Phenolic compounds and carotenoids in pumpkin fruit and related traditional products Gordana M. Zdunić1, Nebojša R. Menković1, Milka B. Jadranin2, Miroslav M. Novaković2, Katarina P. Šavikin1, Jelena Č.Živković1 1Institute for Medicinal Plants Research “Dr Josif Pančić”, Belgrade, Serbia 2Institute for Chemistry, Metallurgy and Technology, University of Belgrade, Belgrade, Serbia.

The olive fruit is rich in phenolic compounds and there has been a growing interest in this group due to their antioxidant activity and health benefits (Ryan et al., ). The most important classes of phenolic compounds in olive fruits include phenolic acids, phenolic alcohols, flavonoids and secoiridoids (Soler-Rivas et al., ).

The.Phenolic Compound Profiles and their Corresponding Antioxidant Capacity of Purple Pitaya (Hylocereus sp.) GenotypesPatricia Esquivela,b, Florian C.

Stintzinga,c,*, and Reinhold Carlea a Institute of Food Science and Biotechnology, Section Plant Foodstuff Technology, Hohenheim University, August-von-Hartmann-Straße 3, D Stuttgart, Germany.As seen in Table 1, the total phenolic content varied from mg/g to mg/g of among the three fruits tested.

The highest phenolic content was found in Salacca zalacca, where the phenolic content in its young, mature, and ripe stage was at mg/g, mg/g and mg/g respectively.