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Cruz EPD, Jansen ET, Fonseca LM, Hackbart HCDS, Siebeneichler TJ, Pires JB, Gandra EA, Rombaldi CV, Zavareze EDR, Dias ARG. Red onion skin extract rich in flavonoids encapsulated in ultrafine fibers of sweet potato starch by electrospinning. Food Chem 2023; 406:134954. [PMID: 36463596 DOI: 10.1016/j.foodchem.2022.134954] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 11/18/2022]
Abstract
Electrospinning encapsulation is a highly viable method to protect bioactive compounds and prevent their degradation. Hence, this study produced ultrafine fibers based on yellow and white sweet potato starches and a red onion skin extract (ROSE; 0, 3, 6, and 9 %, w/w) using electrospinning. The fibers were evaluated for morphology, thermogravimetric properties, antioxidant, in vitro release simulation, thermal resistance (100 and 180 °C), and wettability. The fibers with ROSE presented 251-611 nm diameters, 67-78 % loading capacity, and 51.6-95.4 and 13.4-99.4 % thermal resistance (100 and 180 °C, respectively); apigenin presented the highest thermal protection. The phenolic compounds showed low release using 10 % ethanol and greater release with 50 % ethanol. The fibers with 9 % ROSE showed 2,2'-azino-bis(3-ethylbenzothiazoline) 6-sulfonic acid radical inhibition above 92 %. The ultrafine fibers and the unencapsulated ROSE showed inhibitory action against Escherichia coli and Staphylococcus aureus; only unencapsulated ROSE showed bactericidal activity.
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Affiliation(s)
- Elder Pacheco da Cruz
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil.
| | - Estefani Tavares Jansen
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Laura Martins Fonseca
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Helen Cristina Dos Santos Hackbart
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Tatiane Jéssica Siebeneichler
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Juliani Buchveitz Pires
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Eliezer Avila Gandra
- Laboratory of Food Science and Molecular Biology (LACABIM), Center for Chemical, Pharmaceutical and Food Sciences, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Cesar Valmor Rombaldi
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Elessandra da Rosa Zavareze
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
| | - Alvaro Renato Guerra Dias
- Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil
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Oulahal N, Degraeve P. Phenolic-Rich Plant Extracts With Antimicrobial Activity: An Alternative to Food Preservatives and Biocides? Front Microbiol 2022; 12:753518. [PMID: 35058892 PMCID: PMC8764166 DOI: 10.3389/fmicb.2021.753518] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/24/2021] [Indexed: 12/18/2022] Open
Abstract
In recent years, the search for natural plant-based antimicrobial compounds as alternatives to some synthetic food preservatives or biocides has been stimulated by sanitary, environmental, regulatory, and marketing concerns. In this context, besides their established antioxidant activity, the antimicrobial activity of many plant phenolics deserved increased attention. Indeed, industries processing agricultural plants generate considerable quantities of phenolic-rich products and by-products, which could be valuable natural sources of natural antimicrobial molecules. Plant extracts containing volatile (e.g., essential oils) and non-volatile antimicrobial molecules can be distinguished. Plant essential oils are outside the scope of this review. This review will thus provide an overview of current knowledge regarding the promises and the limits of phenolic-rich plant extracts for food preservation and biofilm control on food-contacting surfaces. After a presentation of the major groups of antimicrobial plant phenolics, of their antimicrobial activity spectrum, and of the diversity of their mechanisms of action, their most promising sources will be reviewed. Since antimicrobial activity reduction often observed when comparing in vitro and in situ activities of plant phenolics has often been reported as a limit for their application, the effects of the composition and the microstructure of the matrices in which unwanted microorganisms are present (e.g., food and/or microbial biofilms) on their activity will be discussed. Then, the different strategies of delivery of antimicrobial phenolics to promote their activity in such matrices, such as their encapsulation or their association with edible coatings or food packaging materials are presented. The possibilities offered by encapsulation or association with polymers of packaging materials or coatings to increase the stability and ease of use of plant phenolics before their application, as well as to get systems for their controlled release are presented and discussed. Finally, the necessity to consider phenolic-rich antimicrobial plant extracts in combination with other factors consistently with hurdle technology principles will be discussed. For instance, several authors recently suggested that natural phenolic-rich extracts could not only extend the shelf-life of foods by controlling bacterial contamination, but could also coexist with probiotic lactic acid bacteria in food systems to provide enhanced health benefits to human.
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Affiliation(s)
- Nadia Oulahal
- Univ Lyon, Université Claude Bernard Lyon 1, ISARA Lyon, BioDyMIA (Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires), Equipe Mixte d’Accueil n°3733, IUT Lyon 1, Technopole Alimentec, Bourg-en-Bresse, France
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Chaudhary V, Thakur N, Kajla P, Thakur S, Punia S. Application of Encapsulation Technology in Edible Films: Carrier of Bioactive Compounds. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.734921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Nutraceuticals, functional foods, immunity boosters, microcapsules, nanoemulsions, edible packaging, and safe food are the new progressive terms, adopted to describe the food industry. Also, the rising awareness among the consumers regarding these has created an opportunity for the food manufacturers and scientists worldwide to use food as a delivery vehicle. Packaging performs a very imminent role in the food supply chain as well as it is a consequential part of the process of food manufacturing. Edible packaging is a swiftly emerging art of science in which edible biopolymers like lipids, polysaccharides, proteins, resins, etc. and other consumable constituents extracted from various non-conventional sources like microorganisms are used alone or imbibed together. These edible packaging are indispensable and are meant to be consumed with the food. This shift in paradigm from traditional food packaging to edible, environment friendly, delivery vehicles for bioactive compounds have opened new avenues for the packaging industry. Bioactive compounds imbibed in food systems are gradually degenerated, or may change their properties due to internal or external factors like oxidation reactions, or they may react with each other thus reducing their bioavailability and ultimately may result in unacceptable color or flavor. A combination of novel edible food-packaging material and innovative technologies can serve as an excellent medium to control the bioavailability of these compounds in food matrices. One promising technology for overcoming the aforesaid problems is encapsulation. It can be used as a method for entrapment of desirable flavors, probiotics, or other additives in order to apprehend the impediments of the conventional edible packaging. This review explains the concept of encapsulation by exploring various encapsulating materials and their potential role in augmenting the performance of edible coatings/films. The techniques, characteristics, applications, scope, and thrust areas for research in encapsulation are discussed in detail with focus on development of sustainable edible packaging.
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Encapsulation of Moringa oleifera Extract in Ca-Alginate Chocolate Beads: Physical and Antioxidant Properties. J FOOD QUALITY 2021. [DOI: 10.1155/2021/5549873] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The aim of the present study was to evaluate the physical and antioxidant properties of chocolate alginate beads containing Moringa oleifera leaf extract (MLE) produced with ecofriendly solvent extraction technology (Deep Eutectic Solvents). The concentration of MLE incorporated was 0, 2, 4, and 6%
, and hardening time for ionotropic gelation with CaCl2 solution was 2, 8, or 20 min. Freshly prepared beads were evaluated for their geometric (area, perimeter, ferret diameter, circularity, roundness), color (CIE L
, a
, and b
and chroma), and antioxidant properties (total phenolic content and percentage inhibition of DPPH• radical). Increasing the MLE concentration resulted in beads smaller in size and more spherical, whereas hardening time only affected their circularity. MLE concentration had also a profound effect on color and antioxidant properties of the beads. As the concentration of MLE increased, the beads appeared lighter and their chroma increased. The radical scavenging activity was ameliorated by the MLE concentration increase for samples hardened for 8 and 20 min, whereas it was unaffected for those at 2 min. The hardening time on the contrary did not affect the inhibition of DPPH• values, regardless of the amount of extract added.
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Gaikwad NN, Kalal AY, Suryavanshi SK, Patil PG, Sharma D, Sharma J. Process optimization by response surface methodology for microencapsulation of pomegranate seed oil. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Nilesh N. Gaikwad
- Division of Post Harvest Technology ICAR‐National Research Centre on Pomegranate (NRCP) Solapur India
| | - Archana Y. Kalal
- Division of Post Harvest Technology ICAR‐National Research Centre on Pomegranate (NRCP) Solapur India
| | - Swati K. Suryavanshi
- Division of Post Harvest Technology ICAR‐National Research Centre on Pomegranate (NRCP) Solapur India
| | - Prakash G. Patil
- Division of Post Harvest Technology ICAR‐National Research Centre on Pomegranate (NRCP) Solapur India
| | - Debi Sharma
- Division of Basic Sciences ICAR‐Indian Institute of Horticultural Research (IIHR) Bengaluru India
| | - Jyotsana Sharma
- Division of Post Harvest Technology ICAR‐National Research Centre on Pomegranate (NRCP) Solapur India
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Rojas A, Velásquez E, Piña C, Galotto MJ, López de Dicastillo C. Designing active mats based on cellulose acetate/polycaprolactone core/shell structures with different release kinetics. Carbohydr Polym 2021; 261:117849. [PMID: 33766345 DOI: 10.1016/j.carbpol.2021.117849] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/20/2021] [Accepted: 02/20/2021] [Indexed: 12/18/2022]
Abstract
Core/shell electrospun mats based on cellulose acetate (CA) and polycaprolactone (PCL) were developed as novel active materials for releasing quercetin (Quer) and curcumin (Cur). The effect of polymeric uniaxial and coaxial electrospun systems and the chemical structures of Quer and Cur on the structural, thermal, and mass transfer properties of the developed mats were investigated. Release modelling indicated that the diffusion of the active agents from the uniaxial PCL fibers was highly dependent on the type of food simulant. Higher diffusion coefficients were obtained for both active agents in acid food simulant due to the higher swelling of the electrospun mats. In addition, CA/PCL coaxial structures slowed down the diffusion of both active agents into both food simulants. CA increased the retention of the active compounds in the polymer structure, resulting in partition coefficients values higher than the values obtained for uniaxial active PCL mats.
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Affiliation(s)
- Adrián Rojas
- University of Santiago of Chile (USACH), Packaging Innovation Center (LABEN-Chile), 9170201, Santiago, Chile; University of Santiago of Chile (USACH), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), 9170201, Santiago, Chile.
| | - Eliezer Velásquez
- University of Santiago of Chile (USACH), Packaging Innovation Center (LABEN-Chile), 9170201, Santiago, Chile; University of Santiago of Chile (USACH), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), 9170201, Santiago, Chile.
| | - Constanza Piña
- University of Santiago of Chile (USACH), Packaging Innovation Center (LABEN-Chile), 9170201, Santiago, Chile; University of Santiago of Chile (USACH), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), 9170201, Santiago, Chile.
| | - María José Galotto
- University of Santiago of Chile (USACH), Packaging Innovation Center (LABEN-Chile), 9170201, Santiago, Chile; University of Santiago of Chile (USACH), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), 9170201, Santiago, Chile; University of Santiago of Chile (USACH), Technological Faculty, Food Science and Technology Department, 9170201, Santiago, Chile.
| | - Carol López de Dicastillo
- University of Santiago of Chile (USACH), Packaging Innovation Center (LABEN-Chile), 9170201, Santiago, Chile; University of Santiago of Chile (USACH), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), 9170201, Santiago, Chile; University of Santiago of Chile (USACH), Technological Faculty, Food Science and Technology Department, 9170201, Santiago, Chile.
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Improving functionality, bioavailability, nutraceutical and sensory attributes of fortified foods using phenolics-loaded nanocarriers as natural ingredients. Food Res Int 2020; 137:109555. [DOI: 10.1016/j.foodres.2020.109555] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/11/2020] [Accepted: 07/12/2020] [Indexed: 02/06/2023]
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Introducing nano/microencapsulated bioactive ingredients for extending the shelf-life of food products. Adv Colloid Interface Sci 2020; 282:102210. [PMID: 32726708 DOI: 10.1016/j.cis.2020.102210] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 05/07/2020] [Accepted: 07/04/2020] [Indexed: 12/31/2022]
Abstract
The shelf-life of foods is affected by several aspects, mainly chemical and microbial events, resulting in a considerable decline in consumer's acceptance. There is an increasing interest to substitute synthetic preservatives with the plant-based bioactive ingredients which are safe and natural. However, full implementation of this replacement is postponed by some challenges associated with bioactive ingredients, including their low chemical stability, off-flavor, low solubility, and short-term effectiveness. Encapsulation could overcome these limitations. The present review explains current trends in applying natural encapsulated ingredients for food preservation based on a classified description including essential oils, plant extracts, phenolics, carotenoids, etc. and their application for extending food shelf-life mostly dealing with antimicrobial, ant-browning and antioxidant properties. Encapsulation techniques, especially nanoencapsulation, is a promising strategy to overcome their limitations. Moreover, better results are obtained using a combination of proteins and polysaccharides as wall materials than single polymers. The encapsulation method and type of encapsulants highly influences the releasing mechanism and physicochemical properties of bioactive ingredients. These factors together with optimizing the conditions of encapsulation process leads to a cost-effective and well encapsulated ingredient which is more efficient than its free form in shelf-life improvement. It has been shown that the well-designed encapsulation systems, finally, boost the shelf-life-promoting functions of the bioactive ingredients, mostly due to enhancing their solubility, homogeneity in food matrices and contact surface with deteriorative agents, and providing their prolonged presence over food storage and processing via increasing the thermal and processing stability of bioactive compounds, as well as controlling their release on food surfaces, or/and within food packages. To this end and given the numerous wall and bioactive core substances available, further studies are needed to evaluate the efficiency of many encapsulated forms of both conventional and novel bioactive ingredients in food shelf-life extending since the interactions and anti-spoiling behaviors of the ingredients in various encapsulation systems and foodstuffs are highly variable that should be optimized and characterized before any industrial application.
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Mtibaa AC, Smaoui S, Ben Hlima H, Sellem I, Ennouri K, Mellouli L. Enterocin BacFL31 from a Safety Enterococcus faecium FL31: Natural Preservative Agent Used Alone and in Combination with Aqueous Peel Onion ( Allium cepa) Extract in Ground Beef Meat Storage. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4094890. [PMID: 31119168 PMCID: PMC6500707 DOI: 10.1155/2019/4094890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/27/2019] [Indexed: 12/29/2022]
Abstract
Safety aspects and probiotic properties of Enterococcus faecium FL31 strain producing an enterocin, named BacFL31 were previously demonstrated. Taking into account its originality, the enterocin BacFL31 was added alone at 200 AU/g or in combination with the aqueous peel onion (Allium cepa) extract (APOE) at 1.56 ± 0.3 mg/mL to ground beef meat. Its biopreservative effect was evaluated by microbiological, physicochemical and sensory analyses during 14 days at 4°C. The APOE was characterized for its phytochemical content: total phenolic (TPC), flavonoids (TFC) and tannins contents (TAC), its antioxidant capacity using the in vitro 1,1-diphenyl-2-picrylhydrazyl (DPPH) and its antilisterial activity. APOE had a high TPC, TFC and TAC respectively with 140 ± 2.05 (mg GAE/g), 35 ± 0.5 (mg QE/g) and 20.6 ± 1.4 (mg CE/g). Equally, APOE showed a potential radical scavenging activity compared to the butylated hydroxytoluene (BHT), with an anti-radical power (ARP) of 46 ± 1.5. During 14 days of storage at 4°C, the combination between APOE and BacFL31 limited the microbial deterioration (P < 0.05), led to a decrease in thiobarbituric acid reactive substances (TBARS) values and slowed down the metmyoglobin (MetMb) and carbonyl group accumulation and delayed the disappearance of sulfphydryl proteins (P < 0.05). The combination was also efficient (P < 0.05) against microflora proliferation, decreased primary and secondary lipid oxidation (P < 0.05), reduced protein oxidation and enhanced significantly (P < 0.05) the sensory attributes. Thus, the enterocin BacFL31 use from a safe Enterococcus faecium combined with APOE as a potential natural preservative to biocontrol ground beef was promising as it was effective at low concentration. The data lay bases for new tests to be carried out in other food matrices.
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Affiliation(s)
- Ahlem Chakchouk Mtibaa
- Laboratory of Microorganisms and Biomolecules, Center of Biotechnology of Sfax, Road of Sidi Mansour Km 6, P. O. Box 1177, 3018, University of Sfax-Tunisia, Tunisia
| | - Slim Smaoui
- Laboratory of Microorganisms and Biomolecules, Center of Biotechnology of Sfax, Road of Sidi Mansour Km 6, P. O. Box 1177, 3018, University of Sfax-Tunisia, Tunisia
| | - Hajer Ben Hlima
- Algae Biotechnology Unit, Biological Engineering Department, National School of Engineers of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Imen Sellem
- Laboratory of Microorganisms and Biomolecules, Center of Biotechnology of Sfax, Road of Sidi Mansour Km 6, P. O. Box 1177, 3018, University of Sfax-Tunisia, Tunisia
| | - Karim Ennouri
- Laboratory of Microorganisms and Biomolecules, Center of Biotechnology of Sfax, Road of Sidi Mansour Km 6, P. O. Box 1177, 3018, University of Sfax-Tunisia, Tunisia
| | - Lotfi Mellouli
- Laboratory of Microorganisms and Biomolecules, Center of Biotechnology of Sfax, Road of Sidi Mansour Km 6, P. O. Box 1177, 3018, University of Sfax-Tunisia, Tunisia
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