Ethanolic Noni (<i>Morinda citrifolia</i> L.) leaf extract dechlorophyllised using sedimentation process: Antioxidant, antibacterial properties and efficacy in extending the shelf‐life of striped catfish slices

Olatunde, Oladipupo Odunayo; Benjakul, Soottawat; Huda, Nurul; Zhang, Bin; Deng, Shanggui

doi:10.1111/ijfs.14917

Cited by 20 publications

(12 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was postulated that the higher TPC obtained in the MECLE sample extracted in 70% ethanol might have migrated inside the cashew leaf cells and washed out along with the cell matrix containing both polar and nonpolar phenolic compounds. The TPC of different extracts from guava leaves, custard apple leaves, and noni leaves showed a higher content of phenolic compounds extracted from mature leaves in aqueous ethanol [ 42 , 43 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Bioactive Chitosan Film Loaded with Cashew (Anacardium occidentale) Leaf Extract

et al. 2022

View full text Add to dashboard Cite

Chitosan is a biopolymer known for its rapid biodegradability and film-forming properties. This research aimed to synthesize and characterize chitosan films loaded with cashew leaf extract (CLE) obtained from immature and mature cashew leaves via aqueous and 70% ethanolic extraction methods. Freeze-dried CLE samples were dissolved in 50% dimethyl sulfoxide for in vitro analysis and chitosan film preparation. The total phenolic content of mature cashew leaves extracted in ethanol (MECLE) showed higher free radicle scavenging activity by a 2,2-diphenyl-1-picrylhydrazyl assay than the other extracts (p < 0.05). MECLE displayed a lower minimal inhibitory concentration, minimum fungal concentration, and higher zone of inhibition against Aspergillus niger compared to the other treatments (p < 0.05). Film-forming solutions were prepared using 2% chitosan, 2% chitosan with 5% mature cashew leaves extracted in deionized water (MACLE) (w/v), and 2% chitosan with 5% MECLE (w/v), respectively, to cast films. Of these, 2% chitosan (CH) with 5% MECLE (CH-MECLE-5) displayed the highest thickness and water vapor transmission rate, water vapor permeability, and oxygen transmission rate when compared to other film samples (p < 0.05). The CH-MECLE-5 film showed the highest inhibition zone of A. niger compared to the control and treated films (p < 0.05). The lightness (L*) of the CH-MECLE-5 film decreased with increment in b* values, which represented the yellow color of the film. In addition, two-photon microscopy revealed a uniform distribution via the auto-fluorescent 3D structure of MECLE in the CH-MECLE-5 film. Therefore, chitosan combined with 5% MECLE may be a potential bioactive and eco-friendly packaging film.

show abstract

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Bioactive Chitosan Film Loaded with Cashew (Anacardium occidentale) Leaf Extract

et al. 2022

View full text Add to dashboard Cite

show abstract

“…MIC was in the range of 64–256 µg mL −1 . This could be related to the high resistivity of GPB towards antibacterial agent mediated by the differences in their cell wall compositions as compared to GNB (Olatunde et al ., 2020a, 2020d). Irrespective of the bacteria, PEF‐CALE showed higher bacteria inhibitory properties than CALE.…”

Section: Resultsmentioning

confidence: 99%

“…This might be associated with the higher TPC and lower TChC in the former as compared to the latter (Table 1). The improved antibacterial properties were recorded for ethanolic guave leaf and noni leaf extracts after chlorophyll removal when compared to the control (without chlorophyll removal) (Olatunde et al ., 2020a, 2020c). The result indicated that the components in PEF‐CALE exhibited higher ability in inhibiting microorganisms than those present in CALE.…”

Section: Resultsmentioning

confidence: 99%

Effect of the extract from custard apple (Annona squamosa) leaves prepared with pulsed electric field‐assisted process on the diversity of microorganisms and shelf‐life of refrigerated squid rings

Olatunde

Shiekh

et al. 2021

Int J of Food Sci Tech

Self Cite

View full text Add to dashboard Cite

Antibacterial and antibiofilm properties of ethanolic custard apple leaf extract (CALE) prepared without and with pulsed electric field (PEF) assisted process (6 kV cm −1 , 300 pulses, 142 kJ kg −1 for 5 min) (PEF-CALE) were comparatively investigated. PEF-CALE showed higher bacterial inhibition against Bacillus subtilis, Listeria monocytogenes, Escherichia coli, and Pseudomonas aeruginosa, compared to CALE. Antibiofilm properties of both extracts towards the aforementioned bacteria were augmented with increasing concentrations (P < 0.05). The impact of PEF-CALE in extending the shelf-life of squid rings (SQR) was also investigated. Based on the microbiological limit, the shelf-life of refrigerated squid rings pretreated with 400 mg kg −1 PEF-CALE was extended by more than 6 days when compared to the control. Pseudomonas lundensis, Pseudomonas fragi, and Shewanella baltica were the most abundant spoilage bacteria found in SQR. Overall, PEF-CALE exhibited promising antimicrobial activities, which could serve as biopreservative agent for inhibiting bacterial growth in SQR during refrigerated storage.

show abstract

“…Olatunde, Benjakul, and Huda, et al. (2020b) and Olatunde, Della Tan, et al. (2020) found that dechlorophyllization of guava and noni leaf extract retarded the growth of gram‐negative Pseudomonas count and hydrogen sulfide‐producing bacteria (HSPB) and total viable count in FFP during refrigerated storage.…”

Section: Application Of Antimicrobials From Natural Sources For Ffp P...mentioning

confidence: 99%

“…Findings suggested that mint extracts had higher microbial inhibition as compared to citrus extracts. Olatunde, Benjakul, and Huda, et al (2020b) and Olatunde, Della Tan, et al (2020) found that dechlorophyllization of guava and noni leaf extract retarded the growth of gram-negative Pseudomonas count and hydrogen sulfide-producing bacteria (HSPB) and total viable count in FFP during refrigerated storage. Also, the ethanolic coconut husk extract was proven to inactivate the microorganism by damaging the cell wall.…”

Section: Plant Extractsmentioning

confidence: 99%

Recent developments of natural antimicrobials and antioxidants on fish and fishery food products

Rathod

Ranveer

Benjakul

et al. 2021

Comp Rev Food Sci Food Safe

Self Cite

View full text Add to dashboard Cite

Fish and fishery products (FFP) are highly perishable due to their high nutritional value and moisture content. The spoilage is mainly caused by microorganisms and chemical reactions, especially lipid oxidation, leading to losses in quality and market value. Microbiological and lipid deteriorations of fishery‐derived products directly lower their nutritive value and pose the risk of toxicity for human health. Increasing demand for safe FFP brings about the preservation using additives from natural origins without chemical additives due to their safety and strict regulation. Antimicrobials and antioxidants from natural sources have exhibited an excellent control over the growth of microorganisms causing fish spoilage via different mechanisms. They also play a major role in retarding lipid oxidation by acting at various stages of oxidation. Antimicrobials and antioxidants from natural sources are usually regarded as safe with no detrimental effects on the quality attributes of FFP. This review provides recent literature on the different antioxidant and antimicrobial agents from natural sources, focusing on microbial and oxidative spoilage mechanisms, their inhibition system, and their applications to retard spoilage, maintain safety, and extend the shelf life of FFP. Their applications and benefits have been revisited.

show abstract

Ethanolic Noni (Morinda citrifolia L.) leaf extract dechlorophyllised using sedimentation process: Antioxidant, antibacterial properties and efficacy in extending the shelf‐life of striped catfish slices

Abstract: The antimicrobial and antioxidant properties of ethanolic noni leaf extract were improved in the top fraction after sedimentation at 4 °C for 24 h

Cited by 20 publications

References 51 publications

Preparation and Characterization of Bioactive Chitosan Film Loaded with Cashew (Anacardium occidentale) Leaf Extract

Preparation and Characterization of Bioactive Chitosan Film Loaded with Cashew (Anacardium occidentale) Leaf Extract

Effect of the extract from custard apple (Annona squamosa) leaves prepared with pulsed electric field‐assisted process on the diversity of microorganisms and shelf‐life of refrigerated squid rings

Recent developments of natural antimicrobials and antioxidants on fish and fishery food products

Contact Info

Product

Resources

About