Converting citrus wastes into value-added products: Economic and environmently friendly approaches

Sharma, Kavita; Mahato, Neelima; Cho, Moo Hwan; Lee, Yong Rok

doi:10.1016/j.nut.2016.09.006

Cited by 406 publications

(246 citation statements)

References 123 publications

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“…Fortunately, food industries and academia have started to play special attention to food by-products in order of their revalorization, keeping a better control of waste management and finding alternatives to the usage of food crops in other applications (Ayala-Zavala et al, 2011;Librán et al, 2013;Sharma et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Bioactive characterization of Persea americana Mill. by-products: A rich source of inherent antioxidants

Melgar

Días

Ćirić

et al. 2018

Industrial Crops and Products

115

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A B S T R A C TAvocado (Persea americana Mill.) is a worldwide consumed fruit, with great interest for cosmetic and pharmaceutical industries; however, 30% of avocado fruits are bio-wastes (peels and kernels), converting them into a potential source of bioactive compounds, such as phenolic compounds. Therefore, the hydroethanolic extracts of peels and kernels of Persea america Mill. var. Hass were analysed regarding their individual phenolic profile by HPLC-DAD/ESI-MS and correlated with their antioxidant, antimicrobial and cytotoxic activities. Avocado byproducts presented a very distinct phenolic profile, presenting higher concentration in peels (227.9 mg/g of extract for total phenolic content), mainly in (epi)catechin derivatives (175 mg/g of extract), followed by chlorogenic derivatives (42.9 mg/g of extract). In this study hydrophilic and lipophilic antioxidant assays were performed together for the first time in P. americana by-products, and although kernels showed a great antioxidant potential (EC 50 values ranging from 18.1 to 276 μg/mL), peels presented the highest potential (EC 50 ranging from 11.7 to 152 μg/mL), mainly due to the presence of phenolic compounds, and an overall better performance in the antibacterial assays. Further studies needs to be conducted to better understand the correlation between the presence of phenolic compounds and bioactivities, however, the main objective is to implement these biocompounds in different products and industries, due to results obtained, P. americana peels could be a great alternative in the substitution of synthetic antioxidants.

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Section: Introductionmentioning

confidence: 99%

Bioactive characterization of Persea americana Mill. by-products: A rich source of inherent antioxidants

Melgar

Días

Ćirić

et al. 2018

Industrial Crops and Products

115

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“…Sweet orange ( Citrus sinensis ) is the most widely produced and consumed citrus fruit . In the European Union, orange production is concentrated in the Mediterranean area, especially in Spain, which is the main producer, as well as in Italy, which together contribute 80% of the total production .…”

Section: Introductionmentioning

confidence: 99%

Orange peels: from by‐product to resource through lactic acid fermentation

et al. 2019

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BACKGROUND Considering the large amounts of by‐products derived from orange processing, which are generally discarded, the present study aimed to explore the feasibility of using orange peel for lactic acid production in solid state fermentation. RESULTS Different species of lactic acid bacteria were employed, singly and in co‐culture, to evaluate their ability to ferment orange peel and produce lactic acid. Among the single cultures tested, Lactobacillus casei 2246 was the most efficient strain, reaching the highest concentration of lactic acid (209.65 g kg−1) and yield (0.88 g g−1). The use of Lactobacillus plantarum 285 and Lactobacillus paracasei 4186 in co‐culture produced a comparable amount of lactic acid, showing a better performance than the same strains in single cultures. CONCLUSION Orange peels represent a suitable raw material for solid state fermentation employing lactic acid bacteria. Lactic acid was obtained that consumed the most of sugars available, leading to high yields. Despite all the strains tested showing the same growth ability, different peculiarities in lactic acid production were revealed, dependent on the species/strains, suggesting the relevance of strain selection. © 2019 Society of Chemical Industry

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“…Citrus waste is of great value since it contains large amount of various flavonoids, carotenoids, dietary fiber, sugars, polyphenols, essential oils, ascorbic acid, as well some trace elements (Sharma et al, 2017). Total polyphenols and carotenoids in lemons, oranges and grapefruits peels are significantly higher than in the peeled fruits (Ramful et al, 2011).…”

Section: Introductionmentioning

confidence: 99%