Standardization and near infrared reflectance spectroscopy based quality evaluation of thermally processed tender jackfruit (Artrocarpus heteophyllus L.) (Record no. 195601)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02762nam a22001697a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 631.56 |
| Item number | PRI/ST PhD |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pritty S Babu |
| 245 ## - TITLE STATEMENT | |
| Title | Standardization and near infrared reflectance spectroscopy based quality evaluation of thermally processed tender jackfruit (Artrocarpus heteophyllus L.) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Tavanur |
| Name of publisher, distributor, etc | Department of Processing and Food Engineering, Kelappaji College of Agricultural Engineering and Technology |
| Date of publication, distribution, etc | 2020 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 179p. |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | PhD |
| 520 3# - SUMMARY, ETC. | |
| Abstract | The present study examined thermal processing in tin free steel cans (TFS) and near infrared reflectance spectroscopy (NIRS) techniques for preservation and rapid characterization of tender jackfruit, respectively. In the thermal processing study, the effect of 16 treatments with different time-temperature combinations on physicochemical and microbiological attributes of canned tender jackfruit were examined. Accordingly, pasteurization at 90oC for 19 min (F = 60 min) and sterilization at 121oC for 8 min (F0 = 3 min) were identified as the best treatments. During 7 months of storage, these treatments yielded microbiologically safe tender jackfruit with no significant (p < 0.05) change in titrable acidity, total soluble solids, carbohydrate and crude fibre contents. In both pasteurization and sterilization treatments with/without preservatives, quality and sensory attributes of canned tender jackfruit were comparable. Hence, the study endorse the use of any of the standardized thermal processing treatments even without preservatives for safe storage of tender jackfruit. The NIRS study was the primary attempt to characterize tender jackfruit (fresh and thermal processed) using its spectral reflectance (R*) within 400-2500 nm wavelength range by means of partial least square regression (PLSR) algorithm. Based on crossvalidation of PLSR models, the study have identified a) second derivative of R* in 7012450 nm as the best pre-processing and wavelength combination for the estimation of quality attributes of fresh tender jackfruit, b) spectral measurement of intact tender jackfruit samples outperform grated counterparts, c) dry spectra of thermal processed tender jackfruit yield superior results than wet spectra, d) DLP NIRscan Nano for cost effective characterization of inter component (skin, tendril and core) variability of fresh tender jackfruit with regard to total flavonoid and phenol contents. The overall results of the analyses advocates the use of NIRS for a rapid, reliable, non-destructive and noninvasive quality assessment of tender jackfruit. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Food engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sudheer K P (Guide) |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | https://krishikosh.egranth.ac.in/handle/1/5810174417 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Item type | Theses |
| Not for loan | Collection code | Permanent location | Current location | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Reference Book | KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 2021-02-10 | 631.56 PRI/ST PhD | 175038 | 2021-02-10 | Theses |