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Permadi N, Nurzaman M, Doni F, Julaeha E. Elucidation of the composition, antioxidant, and antimicrobial properties of essential oil and extract from Citrus aurantifolia (Christm.) Swingle peel. Saudi J Biol Sci 2024; 31:103987. [PMID: 38617568 PMCID: PMC11007538 DOI: 10.1016/j.sjbs.2024.103987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/29/2024] [Accepted: 04/04/2024] [Indexed: 04/16/2024] Open
Abstract
The most effective methodologies for generating Musa spp. explants involve the utilization of plant tissue culture micropropagation techniques. However, the pervasive challenge of microbial contamination significantly impedes the successful micropropagation of Musa spp. This study examined the antioxidant and antibacterial characteristics of the essential oil (LPO) and extract (LPE) obtained from the peel of Citrus aurantifolia. Additionally, we explored their mechanisms against common microbial contaminants in Musa spp. micropropagation. Using gas chromatography-mass spectrometry, we identified 28 components in LPO, with δ-limonene, β-pinene, citral, trans-citral, β-bisabolene, geranyl acetate, and α-pinene as the primary constituents. Meanwhile, liquid chromatography-mass spectrometry detected 17 components in LPE, highlighting nobiletin, tangeretin, scoparone, sinensetin, tetramethylscutellarein, 5-demethylnobiletin, and pyropheophorbide A as the predominant compounds. Evaluation using the DPPH and ABTS methods revealed the IC50 values for LPE at 0.66 ± 0.009 and 0.92 ± 0.012 mg/mL, respectively, indicating higher antioxidant activity compared to LPO, with IC50 values of 3.03 ± 0.019 and 4.27 ± 0.023 mg/mL using the same methods. Both LPO and LPE exhibited antimicrobial activities against all tested contaminant microorganisms through in vitro assays. Mechanistic investigations employing time-kill analysis, assessment of cell membrane integrity, and scanning electron microscopy (SEM) revealed changes in the morphological characteristics of the tested microbial contaminants, intensifying with increased concentration and exposure duration of LPO and LPE. These alterations led to substantial damage, including cell wall lysis, leakage of intracellular components, and subsequent cell death. Consequently, LPO and LPE emerge as promising alternatives for addressing microbial contamination in banana tissue cultures.
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Affiliation(s)
- Nandang Permadi
- Doctorate Program in Biotechnology, Graduate School, Universitas Padjadjaran, Bandung 40132, Indonesia
| | - Mohamad Nurzaman
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Febri Doni
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Euis Julaeha
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
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Indriyani NN, Al-Anshori J, Wahyudi T, Nurzaman M, Nurjanah S, Permadi N, Julaeha E. An optimized chitosan/alginate-based microencapsulation of lime peel essential oil and its application as an antibacterial textile. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:989-1007. [PMID: 38340314 DOI: 10.1080/09205063.2024.2313829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
A functional textile immobilized by microcapsules of the lime peel essential oils of C. aurantifolia (LPEO) was prepared and characterized. A varied amount of Chitosan/Alginate (CH/AG) ratios, followed by a mass of LPEO and concentration of sodium tripolyphosphate (STPP) crosslinker, was optimized sequentially to coacervate LPEO using a Tween 80 emulsifier. An antibacterial assay against both Gram-positive and Gram-negative bacteria was further evaluated for the embedded microcapsules. The LPEO (0.2 g) was effectively coacervated by CH/AG (5:3) crosslinked by 2% of STTP to give a yield, oil content (OC), and encapsulation efficiency (EE) of 53.45 ± 2.16%, 65.08 ± 2.60% and 85.04 ± 0.70% respectively. A rough spherical shape of LPEO microcapsules was homogeneously observed with an average particle size of 0.757 mm. An Avrami's kinetic model revealed the release mechanism of the core following zero-order kinetics (k = 1.11 ± 0.13 × 10-9 s-1, Ea = 70.21 kJ/mol). The LPEO microcapsules demonstrated good thermal stability up to 122 °C and maintained 38% OC at ambient temperature for four weeks. A 70.34 ± 4.16% of the LPEO microcapsules were successfully overlaid onto the gauze with citric acid binder and sodium phosphate catalyst. Overall, the immobilized microcapsules exhibited strong inhibition against S. aureus and moderate against S. epidermidis, E. coli, and K. pneumonia.
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Affiliation(s)
- Nastiti Nur Indriyani
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, Indonesia
| | - Jamaludin Al-Anshori
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, Indonesia
| | - Tatang Wahyudi
- Research Center for Advanced Material, National Research and Innovation Agency (BRIN), Tangerang Selatan, Indonesia
| | - Mohamad Nurzaman
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, Indonesia
| | - Sarifah Nurjanah
- Department of Agriculture of Engineering, Faculty of Agricultural Industrial Technology, Universitas Padjadjaran, Jatinangor, Indonesia
| | - Nandang Permadi
- Doctorate Program in Biotechnology, Graduate School, Universitas Padjadjaran, Bandung, Indonesia
| | - Euis Julaeha
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, Indonesia
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Pan P, Yan X. Preparation of Antibacterial Nanosilver Solution Microcapsules and Their Impact on the Performance of Andoung Wood Surface Coating. Polymers (Basel) 2023; 15:polym15071722. [PMID: 37050338 PMCID: PMC10096832 DOI: 10.3390/polym15071722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/22/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023] Open
Abstract
In this paper, nanosilver solution was used as an antibacterial agent to prepare antibacterial microcapsules. The mass ratio of the core material to the wall material (Wcore: Wwall), the emulsifier’s hydrophilic–lipophilic balance (HLB) value, the mass ratio of ethanol to the emulsifier in solvent (Wcore: Wemulsion), and the rotational speed (r/min) were used to develop the four-factor, three-level orthogonal experiment, which was meant to investigate the most significant factors and the optimum process preparation parameters impacting the coating rate and yield of microcapsules. It was used to make an antibacterial coating that was applied to the surface paint film of a glass substrate and andoung wood, and it was mixed to the water-based primer with a content of 4%. Analyses of the mechanical, optical, and bactericidal characteristics were conducted. The micromorphology of the nanosilver solution microcapsules is influenced by the emulsifier’s HLB value. The color difference of the antibacterial coating film decreased with increasing emulsifier HLB value; however, the coating film’s gloss remained largely suitable. Additionally, the coating film’s transparency and tensile strength both decreased. It had minimal impact on the paint film’s surface hardness, but the adhesion and tensile strength showed a noticeable downward trend. The surface of the paint film was rough. Escherichia coli and Staphylococcus aureus were resistant to the antibacterial characteristics of the water-based primer film when it was combined with antibacterial nanosilver solution microcapsules by 80.7% and 74.55%, respectively. The coating film’s antibacterial properties were applied to the surface of the andoung wood, which were 75.7% and 71.0%, respectively, and somewhat decreased. In order to successfully inhibit bacteria, the nanosilver solution microcapsules were added to waterborne coatings. This ensures both the outstanding performance of the coating film and the effectiveness of the antibacterial effect. It expands the application prospects of antibacterial microcapsules in coatings.
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Affiliation(s)
- Pan Pan
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoxing Yan
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
- Correspondence:
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Julaeha E, Nurzaman M, Wahyudi T, Nurjanah S, Permadi N, Anshori JA. The Development of the Antibacterial Microcapsules of Citrus Essential Oil for the Cosmetotextile Application: A Review. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228090. [PMID: 36432192 PMCID: PMC9693560 DOI: 10.3390/molecules27228090] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/05/2022] [Accepted: 11/10/2022] [Indexed: 11/23/2022]
Abstract
Essential oils (EOs) obtained from the Citrus genus were reported to exhibit good antimicrobial activity. Therefore, they can potentially be applied in daily necessities such as textile sectors as antibacterial functional fabric products. However, a packaging technique to retain such volatile and labile active substances is compulsory. In particular, microencapsulation was found to be a common coating technique employed to protect EOs from the effects of light, heat, humidity, stability, and controlled release of active substances. Various microencapsulation techniques have been introduced, but the most widely used method is complex coacervation, as it is simple, inexpensive, and capable of snaring high essential oils. Hence, this review focused on the microencapsulation of the most consumable citrus EOs with complex coacervation methods and their immobilization on commonly carried-out fabrics. In addition, it also discusses the isolation methods of the EOs, their chemical composition, and the mechanism of antibacterial action.
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Affiliation(s)
- Euis Julaeha
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Mohamad Nurzaman
- Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Tatang Wahyudi
- National Research and Innovation Agency, Bandung 40272, Indonesia
| | - Sarifah Nurjanah
- Department of Agriculture Engineering, Faculty of Agricultural Industrial Technology, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Nandang Permadi
- Study Program of Biotechnology, Postgraduate School, Universitas Padjadjaran, Bandung 40132, Indonesia
| | - Jamaludin Al Anshori
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor 45363, Indonesia
- Correspondence:
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Pratiwi L, Eddy DR, Al Anshori J, Harja A, Wahyudi T, Mulyawan AS, Julaeha E. Microencapsulation of Citrus aurantifolia essential oil with the optimized CaCl 2 crosslinker and its antibacterial study for cosmetic textiles †. RSC Adv 2022; 12:30682-30690. [PMID: 36337964 PMCID: PMC9597583 DOI: 10.1039/d2ra04053k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
A functional fabric immobilized by the microcapsules of C. aurantifolia lime essential oil (LO) was prepared and characterized. A varied amount of CaCl2 crosslinker was optimized to coacervate LO using alginate–gelatin biopolymers and Tween 80 emulsifier. A further evaluation of the immobilized LO microcapsules for the antibacterial effect against both Gram-positive and Gram-negative bacteria was conducted. The optimized alginate/gelatin-based microcapsules were effectively crosslinked by 15% CaCl2 with an yield, oil content (OC), and encapsulation efficiency (EE) of 39.91 ± 3.10%, 78.33 ± 7.53%, and 90.27 ± 5.84%, respectively. A spherical shape of LO microcapsules was homogeneously found with an average particle size of 1.394 μm. A first-order kinetics mechanism for the release of LO out of the microcapsules was modeled by Avrami's kinetic equation (k = 1.60 ± 3.68 × 10−5 s−1). The LO microcapsules demonstrated good thermal stability up to 100 °C and maintained 51.07% OC and 43.56% EE at ambient temperature for three weeks. Using a pad dry method and citric acid binder, LO microcapsules were successfully immobilized on a cloth with a % add on 30.60 ± 1.80%. The LO microcapsules and the immobilized one exhibited a moderate ZoI of bacterial growth for Gram-positive S. aureus and S. epidermidis as well as Gram-negative E. coli and K. pneumonia. Further washing test toward the functional fabric showed that the LO microcapsules incorporated into the fabric were resistant to five cycles of normal washing with a mass reduction of 22.01 ± 1.69%. A functional fabric immobilized by the microcapsules of C. aurantifolia lime essential oil (LO) was prepared and characterized.![]()
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Affiliation(s)
- Luthfia Pratiwi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas PadjadjaranJl. Raya Bandung-Sumedang km.21, JatinangorSumedang45363West JavaIndonesia
| | - Diana Rakhmawaty Eddy
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas PadjadjaranJl. Raya Bandung-Sumedang km.21, JatinangorSumedang45363West JavaIndonesia
| | - Jamaludin Al Anshori
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas PadjadjaranJl. Raya Bandung-Sumedang km.21, JatinangorSumedang45363West JavaIndonesia
| | - Asep Harja
- Department of Geophysics, Faculty of Mathematics and Natural Sciences, Universitas PadjadjaranJl. Raya Bandung-Sumedang km.21, JatinangorSumedang45363West JavaIndonesia
| | - Tatang Wahyudi
- Center for TextileJl. Jendral Ahmad Yani No.390Bandung40272West JavaIndonesia
| | - Agus Surya Mulyawan
- Center for TextileJl. Jendral Ahmad Yani No.390Bandung40272West JavaIndonesia
| | - Euis Julaeha
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas PadjadjaranJl. Raya Bandung-Sumedang km.21, JatinangorSumedang45363West JavaIndonesia
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