Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging Films
Recently, there has been a growing concern among consumers regarding the safety of packaging products, particularly due to the presence of potentially harmful substances like synthetic pigments and inorganic dyes. These substances, which are often used to attract consumer attention, can migrate and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/20/4193 |
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| author | Wordpools Nansu Sukunya Ross Amonrut Waisarikit Gareth M. Ross Pensri Charoensit Nungruthai Suphrom Sararat Mahasaranon |
| author_facet | Wordpools Nansu Sukunya Ross Amonrut Waisarikit Gareth M. Ross Pensri Charoensit Nungruthai Suphrom Sararat Mahasaranon |
| author_sort | Wordpools Nansu |
| collection | DOAJ |
| description | Recently, there has been a growing concern among consumers regarding the safety of packaging products, particularly due to the presence of potentially harmful substances like synthetic pigments and inorganic dyes. These substances, which are often used to attract consumer attention, can migrate and contaminate products over extended shelf storage periods. To address this issue, the focus of this research was the development of a biodegradable packaging film using poly(butylene succinate) (PBS) incorporated with natural colorants extracted from roselle (RS) and sappan heartwood (SP). RS and SP serve as non-toxic and alternative pigments when compared to synthetic colorants. The biodegradable packaging films were prepared using blown film extrusion, encompassing different weight percentages of RS and SP (0.1%, 0.2%, and 0.3%). The films exhibited distinct colors, with RS films appearing pink to purple and SP films exhibiting an orange hue. The water vapor transmission rate slightly decreased with an increasing content of RS and SP extracts, indicating improved barrier properties. Additionally, the films showed reduced light transmittance, as evidenced by the UV–Vis light barrier results. The degree of crystallinity in the films was enhanced, as confirmed by X-ray diffraction and differential scanning calorimetry techniques. Regarding mechanical properties, the PBS/RS and PBS/SP films exhibited slight increases in tensile strength and elongation compared to neat PBS films. Moreover, the blended films demonstrated higher stability after undergoing an aging test, further highlighting their potential for use in biodegradable packaging applications. The key advantages of these films lie in their non-toxicity, biodegradability, and overall environmental friendliness. |
| first_indexed | 2024-03-10T20:56:18Z |
| format | Article |
| id | doaj.art-0f857db5bbab4ae9ba9304a096bb5630 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T20:56:18Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-0f857db5bbab4ae9ba9304a096bb56302023-11-19T17:52:31ZengMDPI AGPolymers2073-43602023-10-011520419310.3390/polym15204193Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging FilmsWordpools Nansu0Sukunya Ross1Amonrut Waisarikit2Gareth M. Ross3Pensri Charoensit4Nungruthai Suphrom5Sararat Mahasaranon6Department of Chemistry, Faculty of Science and Centre of Excellence in Biomaterials, Naresuan University, Phitsanulok 65000, ThailandDepartment of Chemistry, Faculty of Science and Centre of Excellence in Biomaterials, Naresuan University, Phitsanulok 65000, ThailandDepartment of Chemistry, Faculty of Science and Centre of Excellence in Biomaterials, Naresuan University, Phitsanulok 65000, ThailandDepartment of Chemistry, Faculty of Science and Centre of Excellence in Biomaterials, Naresuan University, Phitsanulok 65000, ThailandFaculty of Pharmaceutical Science and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok 65000, ThailandDepartment of Chemistry, Faculty of Science and Centre of Excellence in Biomaterials, Naresuan University, Phitsanulok 65000, ThailandDepartment of Chemistry, Faculty of Science and Centre of Excellence in Biomaterials, Naresuan University, Phitsanulok 65000, ThailandRecently, there has been a growing concern among consumers regarding the safety of packaging products, particularly due to the presence of potentially harmful substances like synthetic pigments and inorganic dyes. These substances, which are often used to attract consumer attention, can migrate and contaminate products over extended shelf storage periods. To address this issue, the focus of this research was the development of a biodegradable packaging film using poly(butylene succinate) (PBS) incorporated with natural colorants extracted from roselle (RS) and sappan heartwood (SP). RS and SP serve as non-toxic and alternative pigments when compared to synthetic colorants. The biodegradable packaging films were prepared using blown film extrusion, encompassing different weight percentages of RS and SP (0.1%, 0.2%, and 0.3%). The films exhibited distinct colors, with RS films appearing pink to purple and SP films exhibiting an orange hue. The water vapor transmission rate slightly decreased with an increasing content of RS and SP extracts, indicating improved barrier properties. Additionally, the films showed reduced light transmittance, as evidenced by the UV–Vis light barrier results. The degree of crystallinity in the films was enhanced, as confirmed by X-ray diffraction and differential scanning calorimetry techniques. Regarding mechanical properties, the PBS/RS and PBS/SP films exhibited slight increases in tensile strength and elongation compared to neat PBS films. Moreover, the blended films demonstrated higher stability after undergoing an aging test, further highlighting their potential for use in biodegradable packaging applications. The key advantages of these films lie in their non-toxicity, biodegradability, and overall environmental friendliness.https://www.mdpi.com/2073-4360/15/20/4193biodegradable polymersPBS filmfood packagingrosellesappan heartwoodmechanical properties |
| spellingShingle | Wordpools Nansu Sukunya Ross Amonrut Waisarikit Gareth M. Ross Pensri Charoensit Nungruthai Suphrom Sararat Mahasaranon Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging Films Polymers biodegradable polymers PBS film food packaging roselle sappan heartwood mechanical properties |
| title | Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging Films |
| title_full | Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging Films |
| title_fullStr | Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging Films |
| title_full_unstemmed | Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging Films |
| title_short | Exploring the Potential of Roselle Calyx and Sappan Heartwood Extracts as Natural Colorants in Poly(butylene Succinate) for Biodegradable Packaging Films |
| title_sort | exploring the potential of roselle calyx and sappan heartwood extracts as natural colorants in poly butylene succinate for biodegradable packaging films |
| topic | biodegradable polymers PBS film food packaging roselle sappan heartwood mechanical properties |
| url | https://www.mdpi.com/2073-4360/15/20/4193 |
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