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The stability of ascorbic acid in bottled cranberry-based beverages under home-use conditions

Creator:: Wong, Geoffrey K.
Abstract:: Commercially bottled, vitamin C-fortified, cranberry juice cocktail and cranberry-apple (cranapple) juice drinks were stored at 5°C under simulated home-use conditions. Ascorbic acid (AA) and dehydroascorbic acid (DHA) levels were evaluated over a period of seven days by high performance liquid chromatography (HPLC). Total vitamin C content was also determined by...
Resource Type:: Masters Thesis
Full Text:: approved: _ . Allen F. Anglemier Commercially bottled, vitamin C-fortified, cranberry juice

The role of ascorbic acid on discoloration of strawberry juice and concentrate

Creator:: Poei, Metty Soek-Kioen
Abstract:: The purpose of this.investigation was to determine how enzymes and oxygen influence the role ascorbic acid has on pigment degradation and browning during storage for strawberry juice and concentrate. The ascorbic and dehydroascorbic acid content of blanched and unblanched, nitrogen-treated and air-exposed samples of strawberry juice and concentrate was measured...
Resource Type:: Masters Thesis
Full Text:: -H Ho-C-H i » CHaoH CHxoH Ascorbic acU T>-hlfdro*5^rb,c Indirect Enzymic Oxidation of

Determination of the ascorbic acid intake necessary to maintain an adequate level of the vitamin in the blood plasma

Creator:: Landquist, Virginia Lord
Resource Type:: Masters Thesis
Full Text:: #^i4rli# tRfflmam lil* mmmm im mm&®M& mi&ft Wm g$m®$Mmm map p%m gro-'c^*- iSKy «?#Mi oentsaia mo #i

The ascorbic acid requirements of older adolescents

Creator:: Davey, Bessie Louise
Abstract:: The concentration of ascorbic acid in the plasma was determined on four levels of ascorbic acid intake for seven day periods in 1946-47 and on three levels of ascorbic acid intake for ten day periods in 1947-48. The subjects, eight girls and eight boys, were 16 to 19 year old...
Resource Type:: Dissertation
Full Text:: the plasma ascorbic acid concentration was a more accu- rate index of vitamin C nutrition when the

Response of scorbutic guinea pigs to ascorbic acid and adrenocorticotropic hormone (ACTH)

Creator:: Riker, Joseph Thaddeus III
Abstract:: Thirty-six female guinea pigs were placed on a scorbutogenic diet for 14 days and then divided into groups of four. Three groups received adrenocorticotropic hormone (ACTH) with each group given 10, 20, or 40 units. Three groups each received 50 mg of ascorbic acid and three groups received 50 mg...
Resource Type:: Masters Thesis
Full Text:: ,T IT-.]O T B.CP] C HO,B.MONE (AC TH ) Thirty-six fernaLe guinea pi54s were placed on a

Influence of ascorbic acid supplementation on copper status in young adult men

Creator:: Finley, Elizabeth Bidwell
Abstract:: Thirteen healthy adult males, ages 20-40, consuming self selected diets, were given instructions to take one 500 mg tablet of ascorbic acid three times a day with their meals for a period of ten weeks. The effect of this daily supplementation on copper status was investigated. An estimation made from...
Resource Type:: Masters Thesis
Full Text:: may relate to humans as all of these experi- mental animals can synthesize vitamin C and these

The effect of erythorbic acid on the determination of ascorbic acid levels in selected foods by high performance liquid chromatography and spectrophotometry

Creator:: Tuan, Shenhsiu
Abstract:: A high performance liquid chromatography (HPLC) procedure using a LiChrosorb-NH₂ column and a eluant buffer of 75:25 (v/v) of acetonitrile:0.05 M KH₂P0₄, pH 5.95, was developed for the successful separation and determination of ascorbic and erythorbic acids in selected food samples. Application of the method, which is sensitive, rapid and...
Resource Type:: Masters Thesis
Full Text:: sulfite (Rice, 1983; Label1, 1983). Erythorbic acid is an stereoisomer of L-ascorbic acid (vitamin C

Effects of cultural practices on the yield and vitamin C content of broccoli

Creator:: Anderson, Wendy (Wendy Lee), 1951-
Resource Type:: Masters Thesis
Full Text:: Practices on the Yield and Vitamin C Content of Broccoli Abstract approved: ^ ^ H^rry^ Mack

Ascorbic acid requirements of older adolescents

Creator:: Storvick, Clara A. (Clara Amanda), 1906-, Davey, Bessie L., Nitchals, Ruth M., Coffey, Ruth E., and Fincke, Margaret L.
Abstract:: 1. The recommended allowance of the National Reasearch Council, 100 mg ascorbic acid for the 18-year-old boys and 80 mg for the 16 to 19-year-old girls, did not maintain mean plasma ascorbic acid values at levels as high as the respective saturation means. For the girls all the mean values...
Resource Type:: Technical Report
Full Text:: . So far as is known, the first controlled study on the vitamin C requirements of adolescents was

A study of ascorbic acid metabolism of adolescent children

Creator:: Storvick, Clara A. (Clara Amanda), 1906-
Abstract:: Published December 1947. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: . They believed the plasma ascorbic acid level was a more accurate index of vitamin C nutrition when the

ScholarsArchive@OSU

The stability of ascorbic acid in bottled cranberry-based beverages under home-use conditions

The role of ascorbic acid on discoloration of strawberry juice and concentrate

Determination of the ascorbic acid intake necessary to maintain an adequate level of the vitamin in the blood plasma

The ascorbic acid requirements of older adolescents

Response of scorbutic guinea pigs to ascorbic acid and adrenocorticotropic hormone (ACTH)

Influence of ascorbic acid supplementation on copper status in young adult men

The effect of erythorbic acid on the determination of ascorbic acid levels in selected foods by high performance liquid chromatography and spectrophotometry

Effects of cultural practices on the yield and vitamin C content of broccoli

Ascorbic acid requirements of older adolescents

A study of ascorbic acid metabolism of adolescent children

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