Ultrasound-assisted extraction of total carotenoids from mandarin epicarp and application as natural colorant in bakery products

Ordóñez‐Santos, Luis Eduardo; Esparza-Estrada, Jessica; Mahecha, Pedro Vanegas

doi:10.1016/j.lwt.2020.110598

Cited by 65 publications

(17 citation statements)

References 35 publications

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“…In this framework, utilisation of vegetable oils as green solvent is gaining huge advantages in the area of natural pigments extraction with their potent antioxidant activities from food waste to maintain green label on the food formulations as well as stabilise the pigment in oil medium. Several studies investigated the potentiality of using vegetable oils as a green solvent/co-solvent along with other innovative technologies for the extraction of carotenoids from fruits and vegetables wastes/their by-products such as mandarin epicarp using sunflower oil [ 14 ], carrots using canola oil [ 15 ], tomato by utilising almond oil, sunflower seed oil, peanut oil and hazelnut oil [ 16 ], carrot using sunflower oil [ 17 ], etc. However, none of the studies have reported on the extraction of carotenoids from pumpkin waste (pulp and peels) using green solvents (especially corn oil).…”

Section: Introductionmentioning

confidence: 99%

Extraction of Carotenoids from Pumpkin Peel and Pulp: Comparison between Innovative Green Extraction Technologies (Ultrasonic and Microwave-Assisted Extractions Using Corn Oil)

Sharma

Bhat

2021

Foods

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Natural pigments improve aesthetic value as well as antioxidant potential of a food product. This study was designed to determine the effects of green extraction techniques on carotenoids, polyphenols and antioxidant activities of pulp and peel of two varieties of pumpkin (Cucurbita maxima). Innovative green extractions (IGE; Ultrasound and Microwave-Assisted Extractions) synergised with corn oil (used as green solvent) were compared with conventional extraction (CE; hexane/isopropyl alcohol; 60:40, v/v). Results showed total carotenoids to be almost double on employing IGE (PM2-UAE-peel = 38.03 ± 4.21; PM4-UAE-peel = 33.78 ± 1.76 µg/g) when compared to conventional extraction (PM2-CE-peel = 19.21 ± 4.39; PM4-CE-peel = 16.21 ± 2.52 µg/g). Polyphenolic contents ranged between 510.69 ± 5.50 and 588.68 ± 7.26 mg GAE/100 g of extract in IGE, compared with conventional extracts (269.50 ± 2.17 to 318.46 ± 6.60 mg GAE/100 g) and percent inhibition of 2,2-Diphenyl-1-picrylhydrazyl (DPPH) ranging between 88.32 ± 1.51 and 93.53 ± 0.30% in IGE when compared with conventional extraction (50.61 ± 1.44 to 57.79 ± 2.09%). Further, oxidative stability of carotenoids extracts from IGE (protection factor = 1.59 ± 0.01 to 1.81 ± 0.05) were found to be significantly higher (p < 0.05) than conventional extracts. Based on results, this study supports the use of innovative green extraction techniques to obtain bioactive pigments like carotenoids. It is anticipated that results generated will find potential applications in food, pharmaceutical and cosmetic industries.

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Section: Introductionmentioning

confidence: 99%

Extraction of Carotenoids from Pumpkin Peel and Pulp: Comparison between Innovative Green Extraction Technologies (Ultrasonic and Microwave-Assisted Extractions Using Corn Oil)

Sharma

Bhat

2021

Foods

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“…The average success rate of ultrasound-guided subclavian brachial plexus block in children aged 1-2 years was 97%, which was much higher than the average success rate of nerve stimulator localization (63%). It shows that ultrasound guidance can also improve the success rate of nerve block in children and avoid phrenic nerve and recurrent laryngeal nerve block caused by the nerve stimulator [ 19 ]. Specific data are shown in Figure 2 .…”

Section: Results and Analysismentioning

confidence: 99%

Application of Intelligent Ultrasound in Real-Time Monitoring of Postoperative Analgesic Nerve Block

Zhao

Wang

Zheng

2021

Contrast Media & Molecular Imaging

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In order to monitor the effect of nerve block in postoperative analgesia more accurately, this paper puts forward the application research of ultrasonic real-time intelligent monitoring of nerve block in postoperative analgesia. Ultrasonic real-time intelligent monitoring of nerve block in upper limb surgery, lower limb surgery, and abdominal surgery combined with the nerve stimulator. The experiments show that there are 5 cases of adverse reactions when the nerve stimulator is only used, but no adverse reactions occur when combined with ultrasound-guided block. Continuous subclavian brachial plexus block with the ultrasound-guided nerve stimulator can clearly see the subclavian brachial plexus and its surrounding tissue structure, the direction of needle insertion in the plane, and the diffusion of narcotic drugs. The average success rate of block was up to 95.2%, which was significantly higher than that of nerve stimulator alone, and the success rate of recatheterization after the first failure was also improved. The average postoperative analgesia satisfaction was 85.6%, the average operation time was only 20 min, and the subclavian artery and pleura were avoided effectively. No pneumothorax and other complications occurred. The average success rate of ultrasound-guided subclavicular brachial plexus block in 1-2-year-old children was 97%, which was much higher than the average success rate of nerve stimulator localization with 63%. Ultrasound-guided nerve block not only directly blocks nerves under visual conditions but also helps to observe the structures around nerves and dynamically observe the diffusion of local anesthetics, which can significantly improve the accuracy and success rate of nerve block and reduce the incidence of complications.

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“…Therefore S/L ratio is another operative parameter to be optimized. Different results regarding the influence of the S/L ratio during the UAE of pigments from by-products were reported, in some cases, authors recommended the use of low values of S/L ratio ( 54 ), high values ( 29 , 55 ), or on the contrary, they reported no effect ( 43 ) on the yield of extracted pigments.…”

Section: Ultrasound Mechanisms Influencing Factors and Energy Consump...mentioning

confidence: 99%

“…UAE has been used to extract carotenoids from different fruits and vegetables by-products such as acerola, guava, genipap and umbu seeds and peels ( 72 ), carrot pomace ( 73 , 81 ), cantaloupe peel ( 82 ), mandarin peel ( 54 , 83 , 84 ), Gac fruit peel ( 63 ), mango peel and paste ( 85 ), peel of different varieties of orange ( 38 , 43 , 48 ), orange pomace ( 86 ), pepper leaves ( 87 ), pomegranate peel ( 55 ), pumpkin peel ( 88 , 89 ), purple passion fruit peel ( 90 ), sea buckthorn pomace ( 49 , 91 , 92 ), tomato peel and seeds ( 31 , 93 – 95 ), and arthropods by-product such as shrimp shell and cephalothorax ( 40 , 96 – 98 ). According to these studies, carotenoids can be used as a natural pigment directly in the preparation of various food products such as butter, salad dressing, beverages, ice cream, desserts, candy, bakery, edible oils, meet products, cosmetics, pharmaceutical products, also as an ingredient in feed for aquatic animals and pets.…”

Section: Extraction Of Natural Pigments With Ultrasound-assisted Extr...mentioning

confidence: 99%

Ultrasound-Assisted Extraction of Natural Pigments From Food Processing By-Products: A Review

Linares

Rojas

2022

Front. Nutr.

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Ultrasound is an emerging technology, which has been highly explored in the food area to improve processes and products. When ultrasound is applied to a product with solid or fluid characteristics, the passage of acoustic waves and acoustic cavitation generates different mechanisms responsible for modifications in the original matrix of the sample. These effects of ultrasound can also be used to take advantage of by-products, for example by extracting compounds of interest, including natural pigments. Natural pigments or colorants are being highly demanded by different industries not only for color purposes but also due to their healthy properties, the greater demands in regulations and new consumer preferences. This review presents an updated critical analysis of the application of ultrasound-assisted extraction (UAE) to obtain natural pigments from food processing by-products. Initially, the ultrasound effects and mechanisms that improve the extraction of natural pigments in a fluid medium, as well as the factors that influence the extraction and the energy consumption of UAE are analyzed and described. Subsequently, the UAE application to obtain pigments belonging to the groups of carotenoids, chlorophyll, anthocyanins and betalains is evaluated. These sections detail the processing conditions, positive and negative effects, as well as possible applications of the extracted pigments. This review presents relevant information that may be useful to expand and explore new applications of ultrasound technology as well as promote the revaluation of by-products to obtain pigments that can be used in food, pharmaceutical or cosmetic industries.

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Ultrasound-assisted extraction of total carotenoids from mandarin epicarp and application as natural colorant in bakery products

Cited by 65 publications

References 35 publications

Extraction of Carotenoids from Pumpkin Peel and Pulp: Comparison between Innovative Green Extraction Technologies (Ultrasonic and Microwave-Assisted Extractions Using Corn Oil)

Extraction of Carotenoids from Pumpkin Peel and Pulp: Comparison between Innovative Green Extraction Technologies (Ultrasonic and Microwave-Assisted Extractions Using Corn Oil)

Application of Intelligent Ultrasound in Real-Time Monitoring of Postoperative Analgesic Nerve Block

Ultrasound-Assisted Extraction of Natural Pigments From Food Processing By-Products: A Review

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