Graduate Thesis Or Dissertation
 

Porous polymer trapping for GC/MS analysis of volatile flavor compounds in corn

公开 Deposited

可下载的内容

下载PDF文件
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/5138jh71g

Descriptions

Attribute NameValues
Creator
Abstract
  • Flavor profiles of canned and frozen whole kernel sweet corn were obtained by entraining the volatile compounds on Porapak 0 traps and by subsequent analysis on temperature-programed, 500' by 0.03" ID capillary columns (SF-96 or Carbowax 20M). Identification was based on GC/MS data, retention indices (I[subscript E]'s) and retention times. The new compounds identified in canned corn included pyridine, methional, dimethyl sulfoxide and dimethyl sulfone. Various sulfur, nitrogen and nitrogen-sulfur heterocyclic compounds were also present as previously mentioned by Libbey et al. (I). Qualitative and quantitative varietal differences were observed in both frozen and canned samples. Many of these compounds were typical of roasted foods, such as nuts or roasted meats, and were not found to any extent in samples of frozen or fresh corn. New compounds found in frozen corn included acetoin, 3-methyl-2-cyclohexenone and dimethyl sulfone. Various model systems were heated to simulate the canning process of sweet corn. Mixtures of water, sugars and sulfur-containing amino acids produced the most corn-like aromas. Systems containing glutamic acid, asparagine, proline, aspartic acid and other amino acids produced earthy, parsnip or vegetable notes. Pyrazines, furans and thiophenes were among the compounds identified. Other experiments were conducted to elucidate mechanisms of flavor formation and to simulate sweet corn flavor.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
权利声明
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 256 Grayscale) using Scamax Scan+ V.1.0.32.10766 on a Scanmax 412CD by InoTec in PDF format. LuraDocument PDF Compressor V.5.8.71.50 used for pdf compression and textual OCR.
Replaces

关联

Parents:

This work has no parents.

属于 Collection:

单件

缩略图 标题 上传日期 公开度 行动
file details BOYKOALAYNE1978.pdf 2017-08-08 公开 下载