Ohmic heating extraction and characterization of rambutan (Nephelium lappaceum L.) peel extract with enhanced antioxidant and antifungal activity as a bioactive and functional ingredient in white bread preparation

Torgbo, Selorm; Sukatta, Udomlak; Kamonpatana, Pitiya; Sukyai, Prakit

doi:10.1016/j.foodchem.2022.132332

Cited by 21 publications

(36 citation statements)

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“…The main polyphenols in the extracts (gallic acid, corilagin, geraniin, and ellagic acid) were quantified using a high performance liquid chromatographer (HPLC; Waters, USA) equipped with an Inertsil ODS-3 C18 (4.6 mm × 150 mm, 5 μm) column. 27 The experiment was conducted using a gradient elution of 0.4% formic acid in methanol with a flow rate of 1.0 mL/min and a column temperature of 30 °C. The peaks of the sample were measured at 280 nm using a variable wavelength detector.…”

Section: Methodsmentioning

confidence: 99%

“… 25 Studies on bread enriched with phytochemicals were reported to enhance sensory attributes, shelf life, and nutrient content. 26 , 27 These health promoting metabolites are predominantly found in various types of fruits and vegetables.…”

Section: Introductionmentioning

confidence: 99%

“…It is cultivated in different parts of the world, with Thailand, Indonesia, and Malaysia as the main producing countries. 27 The edible and succulent fruit is rich in sugars, organic acids, minerals, dietary fiber, and vitamin C. 28 − 31 About 270000 tons of rambutan fruits are produced in Thailand every year and processed into various forms. Out of this, the peel/waste contributes to 45.9–64.7% of the total weight.…”

Section: Introductionmentioning

confidence: 99%

“…Out of this, the peel/waste contributes to 45.9–64.7% of the total weight. 27 , 32 The peel is a rich source of mineral elements and ellagitannins that could be put into best use to reduce waste via economically viable processes and procedures to produce value-added products.…”

Section: Introductionmentioning

confidence: 99%

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Biological Characterization and Quantification of Rambutan (Nephelium lappaceum L.) Peel Extract as a Potential Source of Valuable Minerals and Ellagitannins for Industrial Applications

et al. 2022

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This study extracted ellagitannins from rambutan peel using the Soxhlet technique. The extract was further partitioned and fractionated to get extract rich in ellagitannin and geraniin, respectively. The partitioning of the extract significantly increased total phenolic content (TPC) by 36.3% and its biological properties. Mineral elements such as Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, and Zn were identified in both peel and extract. Ellagitannins such as geraniin and corilagin with metabolites (gallic acid and ellagic acid) were identified as the major compounds. Analysis of antioxidant activities shows that the ellagitannin rich extract is as powerful as vitamin C. Geraniin was the main contributor to the free radical scavenging activity. The study also revealed that extract with a fraction rich in geraniin has antioxidant activity equivalent to commercial geraniin (1.56 ± 0.11 Trolox equivalent g/g). It also showed low cytotoxicity on fibroblast L929 cells, moderate tyrosinase activity, and good efficacy against Staphylococcus aureus , Staphylococcus epidermidis , and Cutibacterium acnes strains. Successive fractionation of the extract is a promising technique to produce geraniin rich fractions with enhanced antioxidant property. Rambutan peel, as a natural product, is a good source of mineral elements and biologically active compounds for pharmaceutical, nutraceutical, and cosmetic formulations.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biological Characterization and Quantification of Rambutan (Nephelium lappaceum L.) Peel Extract as a Potential Source of Valuable Minerals and Ellagitannins for Industrial Applications

et al. 2022

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“…Despite the simple design, ohmic processing involves several processing variables, such as temperature, time, electric field, voltage, current, and frequency, with different effects on the extraction process and physicochemical properties of the extracts. Recently published data indicated that using suitable ohmic heating processing conditions is beneficial in boosting extraction, and examples include the reports on extracting anthocyanins from grape skin [ 11 ], bioactive compounds from color potato [ 12 ], phenolics from rambutan peels [ 13 ], bioactive compounds from tomato by-products [ 14 ], and phenolics from vine-pruning residue [ 15 ]. However, there is limited information on pineapple core extraction through ohmic heating, and it is unclear how the processing parameters may affect the properties of pineapple core extract.…”

Section: Introductionmentioning

confidence: 99%

Ohmic Heating Extraction at Different Times, Temperatures, Voltages, and Frequencies: A New Energy-Saving Technique for Pineapple Core Valorization

Gavahian

Chu

2022

Foods

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Pineapple core is considered a processing by-product. This study proposed and evaluated an ohmic heating extraction-based valorization platform to obtain value-added bioactive compounds from pineapple core and studied the effects of four important processing parameters. In this sense, a Taguchi design (L16(4)4) was used to assess the effects of temperature (70, 80, 90, and 100 °C), time (15, 30, 45, and 60 min), voltage (110, 160, 210, and 260 V), and frequency (60, 340, 620, and 900 Hz) on heating rate, come-up time, energy consumption, system performance efficiency, total phenolic compounds (TPC), DPPH, and ABTS. Finally, a side-by-side comparison of optimized ohmic heating (OOH) and conventional extraction was performed, and chemical composition was compared by ultra-performance liquid chromatography equipped with photodiode array detection-mass (UPLC-DAD-ESI-MS-MS). According to the results, increasing temperatures enhanced system performance efficiency but negatively affected TPC and antioxidant values above 90 ℃. Similarly, prolonging the extraction (>30 min) decreased TPC. Further, increasing voltage (from 110 to 260 V) shortened the come-up time (from 35.75 to 5.16 min) and increased the heating rate (from 2.71 to 18.80 °C/min−1). The optimal conditions were 30 min of extraction at 80 °C, 160 V, and 900 Hz. Verification of the optimal conditions revealed that OOH yielded an extract with valuable bioactive compounds and saved 50% of the time and 80% of energy compared to the conventional treatment. The UPLC-DAD-ESI-MS-MS showed that there were similarities between the chemical profiles of the extracts obtained by conventional and OOH methods, while the concentration of major compounds varied depending on the extraction method. This information can help achieve sustainable development goals (SDGs) by maximizing the yield and minimizing energy and time consumption.

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Alginate beads loaded with rambutan extract: characterization and stability during in vitro gastrointestinal digestion

Aksornsri,

Peanparkdee

2024

J Sci Food Agric

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BackgroundThe fallen young rambutan fruit are an underrated agricultural‐wastes which may contain several bioactive compounds. In this study, the fallen young rambutan fruit was assessed regarding their phenolic contents and antioxidant activities. In order to expand its utilization, rambutan extract‐loaded hydrogel beads were developed by basic spherification technique using sodium alginate. The effect of ratios of polymer and extract and different calcium sources were evaluated. The recovery of bioactive compounds from hydrogel beads were determined using in vitro gastrointestinal digestion models.ResultsA 50% (v/v) of ethanol yielded rambutan extract with high chemical properties. The production of hydrogel beads using ratio of 1:3 with calcium lactate (CL) provided the highest percent of production yield of 122.94%. The hydrogel beads developed using the ratio of 1:3 with combination of calcium lactate and calcium chloride (CC) showed high recovery of phenolic compounds and their antioxidant activity after simulated intestinal digestion, which were greater values compared to unencapsulated extract.ConclusionThis finding demonstrates that the ratio of wall material to rambutan extract and the calcium sources influence the physical properties, chemical properties, and in vitro gastrointestinal digestion stability of alginate beads. The obtained hydrogel beads may potential application in the food or pharmaceutical industries.This article is protected by copyright. All rights reserved.

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Ohmic heating extraction and characterization of rambutan (Nephelium lappaceum L.) peel extract with enhanced antioxidant and antifungal activity as a bioactive and functional ingredient in white bread preparation

Cited by 21 publications

References 70 publications

Biological Characterization and Quantification of Rambutan (Nephelium lappaceum L.) Peel Extract as a Potential Source of Valuable Minerals and Ellagitannins for Industrial Applications

Biological Characterization and Quantification of Rambutan (Nephelium lappaceum L.) Peel Extract as a Potential Source of Valuable Minerals and Ellagitannins for Industrial Applications

Ohmic Heating Extraction at Different Times, Temperatures, Voltages, and Frequencies: A New Energy-Saving Technique for Pineapple Core Valorization

Alginate beads loaded with rambutan extract: characterization and stability during in vitro gastrointestinal digestion

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