Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.)
The strong wind pre-cooling (SWPC), ice water pre-cooling (IWPC), vacuum pre-cooling (VPC), natural convection pre-cooling (NCPC), and slurry ice pre-cooling (SIPC) techniques were used to pre-cool the fresh sweet corn (<i>Zea mays</i> L.), and then the pre-cooling treated sweet corn sam...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/12/12/2370 |
| _version_ | 1827735890882985984 |
|---|---|
| author | Chi Zhang Pengcheng Zhou Jun Mei Jing Xie |
| author_facet | Chi Zhang Pengcheng Zhou Jun Mei Jing Xie |
| author_sort | Chi Zhang |
| collection | DOAJ |
| description | The strong wind pre-cooling (SWPC), ice water pre-cooling (IWPC), vacuum pre-cooling (VPC), natural convection pre-cooling (NCPC), and slurry ice pre-cooling (SIPC) techniques were used to pre-cool the fresh sweet corn (<i>Zea mays</i> L.), and then the pre-cooling treated sweet corn samples were stored at 4 °C for 28 days. During refrigeration, quality indicators, such as hardness, water loss, color, soluble solids content, and soluble sugar, were determined. In addition, oxidation indicators, such as peroxidase, catalase, ascorbic acid-peroxidase activity, and carotene content, were also measured. The results showed that the main problems of sweet corn during cold storage were water loss and respiration. The pre-cooling speed of SWPC is the fastest, and the latent heat of sweet corn can be removed in only 31 min. SWPC and IWPC could reduce the loss of fruit quality, maintain good color and hardness, inhibit the decrease of water, soluble solids, soluble sugars, and carotenoid contents, maintain balance between POD, APX, and CAT, and extend the shelf life of sweet corn. The shelf life of SWPC and IWPC corn reached 28 days, 14 days longer than SIPC and VPC treated samples, and 7 days longer than NCPC treated samples. Therefore, SWPC and IWPC are the appropriate methods to pre-cool the sweet corn before cold storage. |
| first_indexed | 2024-03-11T02:01:05Z |
| format | Article |
| id | doaj.art-8038ea2957df497fbd65327daed29fe9 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T02:01:05Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-8038ea2957df497fbd65327daed29fe92023-11-18T12:11:11ZengMDPI AGPlants2223-77472023-06-011212237010.3390/plants12122370Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.)Chi Zhang0Pengcheng Zhou1Jun Mei2Jing Xie3College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, ChinaCollege of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, ChinaCollege of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, ChinaCollege of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, ChinaThe strong wind pre-cooling (SWPC), ice water pre-cooling (IWPC), vacuum pre-cooling (VPC), natural convection pre-cooling (NCPC), and slurry ice pre-cooling (SIPC) techniques were used to pre-cool the fresh sweet corn (<i>Zea mays</i> L.), and then the pre-cooling treated sweet corn samples were stored at 4 °C for 28 days. During refrigeration, quality indicators, such as hardness, water loss, color, soluble solids content, and soluble sugar, were determined. In addition, oxidation indicators, such as peroxidase, catalase, ascorbic acid-peroxidase activity, and carotene content, were also measured. The results showed that the main problems of sweet corn during cold storage were water loss and respiration. The pre-cooling speed of SWPC is the fastest, and the latent heat of sweet corn can be removed in only 31 min. SWPC and IWPC could reduce the loss of fruit quality, maintain good color and hardness, inhibit the decrease of water, soluble solids, soluble sugars, and carotenoid contents, maintain balance between POD, APX, and CAT, and extend the shelf life of sweet corn. The shelf life of SWPC and IWPC corn reached 28 days, 14 days longer than SIPC and VPC treated samples, and 7 days longer than NCPC treated samples. Therefore, SWPC and IWPC are the appropriate methods to pre-cool the sweet corn before cold storage.https://www.mdpi.com/2223-7747/12/12/2370sweet cornpre-cooling methodscold storageshelf life |
| spellingShingle | Chi Zhang Pengcheng Zhou Jun Mei Jing Xie Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.) Plants sweet corn pre-cooling methods cold storage shelf life |
| title | Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.) |
| title_full | Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.) |
| title_fullStr | Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.) |
| title_full_unstemmed | Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.) |
| title_short | Effects of Different Pre-Cooling Methods on the Shelf Life and Quality of Sweet Corn (<i>Zea mays</i> L.) |
| title_sort | effects of different pre cooling methods on the shelf life and quality of sweet corn i zea mays i l |
| topic | sweet corn pre-cooling methods cold storage shelf life |
| url | https://www.mdpi.com/2223-7747/12/12/2370 |
| work_keys_str_mv | AT chizhang effectsofdifferentprecoolingmethodsontheshelflifeandqualityofsweetcornizeamaysil AT pengchengzhou effectsofdifferentprecoolingmethodsontheshelflifeandqualityofsweetcornizeamaysil AT junmei effectsofdifferentprecoolingmethodsontheshelflifeandqualityofsweetcornizeamaysil AT jingxie effectsofdifferentprecoolingmethodsontheshelflifeandqualityofsweetcornizeamaysil |