Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> Seaweed
Traditionally, the processing of <i>Gelidium</i> seaweed into <i>Gelidium</i> jelly was very complicated, and involved repeated washing with water and sun drying for seven rounds. The seaweed, which is originally reddish-purple in color, turns yellow in color after the repeat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/12/24/4508 |
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| author | Wen-Chieh Sung Hong-Ting (Victor) Lin Wei-Chih Liao Mingchih Fang |
| author_facet | Wen-Chieh Sung Hong-Ting (Victor) Lin Wei-Chih Liao Mingchih Fang |
| author_sort | Wen-Chieh Sung |
| collection | DOAJ |
| description | Traditionally, the processing of <i>Gelidium</i> seaweed into <i>Gelidium</i> jelly was very complicated, and involved repeated washing with water and sun drying for seven rounds. The seaweed, which is originally reddish-purple in color, turns yellow in color after the repeated washing and sun drying cycles. However, the sun drying process can only be used on sunny days. Therefore, this study evaluated an alternative method, halogen lamp drying, and compared the qualities of the product, <i>Gelidium</i> jelly, made using the halogen lamp drying and traditional sun drying methods. The properties investigated included the agar yield, gelling temperature, hardness, springiness, rheological parameters, sensory attributes, color, and volatile compounds. The results demonstrated that the halogen lamp drying method required 12 washing and drying cycles to achieve similar jelly properties to seven rounds of sun drying in the experimental conditions. Volatiles including heptanal, β-ionone, and (E)-2-decenal could be used as indicators to monitor the washing and drying processes. Halogen lamp drying could be an alternative processing method for seaweed drying, especially on rainy days. |
| first_indexed | 2024-03-08T20:47:16Z |
| format | Article |
| id | doaj.art-e1625699941746e8bfcddeb005321e4f |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-08T20:47:16Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-e1625699941746e8bfcddeb005321e4f2023-12-22T14:09:03ZengMDPI AGFoods2304-81582023-12-011224450810.3390/foods12244508Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> SeaweedWen-Chieh Sung0Hong-Ting (Victor) Lin1Wei-Chih Liao2Mingchih Fang3Department of Food Science, National Taiwan Ocean University, Keelung 202301, TaiwanDepartment of Food Science, National Taiwan Ocean University, Keelung 202301, TaiwanDepartment of Food Science, National Taiwan Ocean University, Keelung 202301, TaiwanDepartment of Food Science, National Taiwan Ocean University, Keelung 202301, TaiwanTraditionally, the processing of <i>Gelidium</i> seaweed into <i>Gelidium</i> jelly was very complicated, and involved repeated washing with water and sun drying for seven rounds. The seaweed, which is originally reddish-purple in color, turns yellow in color after the repeated washing and sun drying cycles. However, the sun drying process can only be used on sunny days. Therefore, this study evaluated an alternative method, halogen lamp drying, and compared the qualities of the product, <i>Gelidium</i> jelly, made using the halogen lamp drying and traditional sun drying methods. The properties investigated included the agar yield, gelling temperature, hardness, springiness, rheological parameters, sensory attributes, color, and volatile compounds. The results demonstrated that the halogen lamp drying method required 12 washing and drying cycles to achieve similar jelly properties to seven rounds of sun drying in the experimental conditions. Volatiles including heptanal, β-ionone, and (E)-2-decenal could be used as indicators to monitor the washing and drying processes. Halogen lamp drying could be an alternative processing method for seaweed drying, especially on rainy days.https://www.mdpi.com/2304-8158/12/24/4508sun dryinghalogen lamp drying<i>Gelidium</i> seaweedjellyvolatile compoundsdried seaweed |
| spellingShingle | Wen-Chieh Sung Hong-Ting (Victor) Lin Wei-Chih Liao Mingchih Fang Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> Seaweed Foods sun drying halogen lamp drying <i>Gelidium</i> seaweed jelly volatile compounds dried seaweed |
| title | Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> Seaweed |
| title_full | Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> Seaweed |
| title_fullStr | Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> Seaweed |
| title_full_unstemmed | Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> Seaweed |
| title_short | Effects of Halogen Lamp and Traditional Sun Drying on the Volatile Compounds, Color Parameters, and Gel Texture of Gongliao <i>Gelidium</i> Seaweed |
| title_sort | effects of halogen lamp and traditional sun drying on the volatile compounds color parameters and gel texture of gongliao i gelidium i seaweed |
| topic | sun drying halogen lamp drying <i>Gelidium</i> seaweed jelly volatile compounds dried seaweed |
| url | https://www.mdpi.com/2304-8158/12/24/4508 |
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