Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage Periods
Walnuts are highly valued for their rich nutritional content, but their quality degrades during storage due to oxidation and other quality reducing processes. This study investigated the use of bioactive compounds extracted from walnut pomace, a by-product of walnut oil production, to develop an edi...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/14/22/10120 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846154534966001664 |
|---|---|
| author | Pradeep Kumar Lilla Szalóki-Dorkó Beatrix Szabó-Nótin Julianna Kereszturi Judit Tormási László Abrankó István Dalmadi Dóra Székely Mónika Máté |
| author_facet | Pradeep Kumar Lilla Szalóki-Dorkó Beatrix Szabó-Nótin Julianna Kereszturi Judit Tormási László Abrankó István Dalmadi Dóra Székely Mónika Máté |
| author_sort | Pradeep Kumar |
| collection | DOAJ |
| description | Walnuts are highly valued for their rich nutritional content, but their quality degrades during storage due to oxidation and other quality reducing processes. This study investigated the use of bioactive compounds extracted from walnut pomace, a by-product of walnut oil production, to develop an edible coating that extends the shelf life of ‘Milotai 10’ walnut kernels. Walnut kernels were stored for eight months in four different packaging materials (PE, PP, MPP, PLA) and three treatments were used (air or without treatment, nitrogen gas, and walnut pomace extract coating). The effects of these combinations on walnut quality parameters, including polyphenol content, vitamin E, fatty acids, peroxide value, and color, were analyzed. The results show that the combination of metallized polypropylene packaging under nitrogen treatment or with atmospheric air and walnut pomace extract (MPP-A-E+) best preserves walnut quality, making it a promising option for extending shelf-life. |
| format | Article |
| id | doaj-art-52b562f8d7214aa091c67e3fb8e37e01 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-52b562f8d7214aa091c67e3fb8e37e012024-11-26T17:47:32ZengMDPI AGApplied Sciences2076-34172024-11-0114221012010.3390/app142210120Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage PeriodsPradeep Kumar0Lilla Szalóki-Dorkó1Beatrix Szabó-Nótin2Julianna Kereszturi3Judit Tormási4László Abrankó5István Dalmadi6Dóra Székely7Mónika Máté8Department of Fruit and Vegetable Processing Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 29-43 Villányi út, 1118 Budapest, HungaryDepartment of Fruit and Vegetable Processing Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 29-43 Villányi út, 1118 Budapest, HungaryDepartment of Fruit and Vegetable Processing Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 29-43 Villányi út, 1118 Budapest, HungaryDepartment of Fruit and Vegetable Processing Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 29-43 Villányi út, 1118 Budapest, HungaryDepartment of Food Chemistry and Analytical Chemistry, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 29-43 Villányi út, 1118 Budapest, HungaryDepartment of Food Chemistry and Analytical Chemistry, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 29-43 Villányi út, 1118 Budapest, HungaryDepartment of Livestock Products and Food Preservation Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 43-43 Ménesi út, 1118 Budapest, HungaryMHKSZ—Association of Hungarian Deepfreezing and Canning Industry, 2 Haller utca, 1096 Budapest, HungaryDepartment of Fruit and Vegetable Processing Technology, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 29-43 Villányi út, 1118 Budapest, HungaryWalnuts are highly valued for their rich nutritional content, but their quality degrades during storage due to oxidation and other quality reducing processes. This study investigated the use of bioactive compounds extracted from walnut pomace, a by-product of walnut oil production, to develop an edible coating that extends the shelf life of ‘Milotai 10’ walnut kernels. Walnut kernels were stored for eight months in four different packaging materials (PE, PP, MPP, PLA) and three treatments were used (air or without treatment, nitrogen gas, and walnut pomace extract coating). The effects of these combinations on walnut quality parameters, including polyphenol content, vitamin E, fatty acids, peroxide value, and color, were analyzed. The results show that the combination of metallized polypropylene packaging under nitrogen treatment or with atmospheric air and walnut pomace extract (MPP-A-E+) best preserves walnut quality, making it a promising option for extending shelf-life.https://www.mdpi.com/2076-3417/14/22/10120walnutpackagingedible coatingPE (polyethylene)PP (polypropylene)MPP (metallized polypropylene) |
| spellingShingle | Pradeep Kumar Lilla Szalóki-Dorkó Beatrix Szabó-Nótin Julianna Kereszturi Judit Tormási László Abrankó István Dalmadi Dóra Székely Mónika Máté Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage Periods Applied Sciences walnut packaging edible coating PE (polyethylene) PP (polypropylene) MPP (metallized polypropylene) |
| title | Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage Periods |
| title_full | Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage Periods |
| title_fullStr | Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage Periods |
| title_full_unstemmed | Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage Periods |
| title_short | Effect of Extracted Walnut Pomace Cake Edible Coating and Packaging Type on Quality Parameters of Walnut (<i>Juglans regia</i> L.) Kernels During Long Storage Periods |
| title_sort | effect of extracted walnut pomace cake edible coating and packaging type on quality parameters of walnut i juglans regia i l kernels during long storage periods |
| topic | walnut packaging edible coating PE (polyethylene) PP (polypropylene) MPP (metallized polypropylene) |
| url | https://www.mdpi.com/2076-3417/14/22/10120 |
| work_keys_str_mv | AT pradeepkumar effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT lillaszalokidorko effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT beatrixszabonotin effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT juliannakereszturi effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT judittormasi effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT laszloabranko effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT istvandalmadi effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT doraszekely effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods AT monikamate effectofextractedwalnutpomacecakeediblecoatingandpackagingtypeonqualityparametersofwalnutijuglansregiailkernelsduringlongstorageperiods |