Salamura asma (Vitis vinifera L.) yapraklarının antioksidan aktivitelerinin ve bazı fizikokimyasal özelliklerin değerlendirilmesi
Yıl 2024,
Cilt: 28 Sayı: 3, 459 - 470, 28.09.2024
Tuba Zorlu Ünlü
,
Semra Topuz
,
Mustafa Bayram
,
Cemal Kaya
Öz
Asma (Vitis vinifera L.) yaprakları yüzyıllardır hem çeşitli yemeklerin hazırlanmasında hem de tıbbi amaçlarla kullanılmaktadır. Asma yaprakları uzun süre muhafaza edilmek amacıyla salamuraya işlenmektedir. Bu çalışmada, Tokat yöresinde yetiştirilen Narince çeşidinden endüstriyel ve geleneksel yöntemlerle üretilen salamura asma yapraklarının bazı fizikokimyasal özellikleri, toplam fenolik madde miktarları ve antioksidan aktiveleri belirlenmiştir. Endüstriyel ve geleneksel yöntemlerle üretilen salamura asma yapraklarının pH değerleri 3.31-3.95, toplam asitlik miktarı %0.3-1.72, tuz miktarı %10.92-23.67 aralığında tespit edilmiştir. Toplam fenolik madde miktarları saf su, %80 etil alkol ve %70 metil alkol ekstraktları için sırasıyla, 0.55-7.81 mg GAE g-1, 5.00-15.66 mg GAE g-1, 3.49-16.85 mg GAE g-1 aralığında belirlenmiştir. Katyon radikali giderme aktivitesi (ABTS) üç farklı çözücü için sırasıyla 1.87-15.42 mg TE g-1, 2.75-24.85 mg TE g-1, 3.57-25.05 mg TE g-1 aralığında, serbest radikali giderme aktivitesi (DPPH) ise sırasıyla 2.89-8.89 mg TE g-1,
Kaynakça
- Akin-Basçam, Z. (2021). Functional composition of grapevine leaf and required procedures for the design of the brine grapevine leaf processing plant. International Journal of Scientific and Technological Research, 7(1), 1-14.
- Alakomi, H. L., Skytta, E., Saarela, M., Mattila-Sandholm, T., Latva-Kala, K., & Helander, I. M. (2000). Lactic acid permeabilizes gram-negative bacteria by disrupting the outer membrane. Applied and Environmental Microbiology, 66(5), 2001-2005.
- Amarowicz, R., Narolewska, O., Karamac, M., Kosinska, A., & Weidner, S. (2008). Grapevine leaves as a source of natural antioxidants. Polish Journal of Food and Nutrition Sciences, 58(1), 73-78.
- AWRI, (2024). Australian Wine Research Institute. Retrieved from: https://awri.com.au.
- Babalık, Z., & Baydar, N. G. (2019). Grape leaves as a natural antioxidant source: Determination of total phenolic compound changes. Turkish Journal of Agriculture-Food Science and Technology, 7(10), 1603-1606.
- Bal, H. S. G., Kaplan, E., & Kaplan, K. (2019). Bağcılık ve salamura yaprak konusunda çiftçi yönelimi ve değerlendirmeleri (Tokat ili Pazar ilçe örneği). 3. Uluslararası UNİDOKAP Karadeniz Sempozyumu, (pp 849-857), 21-23 Haziran, Tokat, Türkiye.
- Banjanin, T., Uslu, N., Vasic, Z. R., & Özcan, M. M. (2021). Effect of grape varieties on bioactive properties, phenolic composition, and mineral contents of different grape‐vine leaves. Journal of Food Processing and Preservation, 45(2), e15159.
- Bintsis, T. (2018). Lactic acid bacteria as starter cultures: An update in their metabolism and genetics. AIMS Microbiology, 4(4), 665-684.
- Blasi, F., Urbani, E., Simonetti, M. S., Chiesi, C., & Cossignani, L. (2016). Seasonal variations in antioxidant compounds of Olea europaea leaves collected from different Italian cultivars. Journal of Applied Botany and Food Quality, 89, 202-207.
- Bodó, A., Csepregi, K., Szata, B. É., Nagy, D. U., Jakab, G., & Kocsis, M. (2017). Bioactivity of leaves, skins and seeds of berry color variant grapevines (Vitis vinifera L.). Research & Reviews: Journal of Pharmacognosy and Phytochemistry, 16-22.
- Cangi, R., & Yağcı, A. (2012). Iğdır yöresinde salamuralık asma yaprağı üretim imkanları. Iğdır University Journal of the Institute of Science and Technology, 2, 9-14.
- Cemeroğlu, B. S. (2013). Gıda Analizleri, 3th ed. Bizim Grup Basımevi, Ankara.
- Ceyhan, N., Keskin, D., Zorlu, Z., & Ugur, A. (2012). In-vitro antimicrobial activities of different extracts of grapevine leaves (Vitis vinifera L.) from West Anatolia against some pathogenic microorganisms. Journal of Pure Applied Microbiology, 6, 1303-1308.
- Çoklar, H. & Akbulut, M. (2016). Alıç (Crataegus orientalis) meyvesinin antioksidan aktivitesi ve fenolik bileşiklerinin ekstraksiyonu üzerine farklı çözgenlerin etkisi. Derim, 33 (2), 237-248.
- Dani, C., Oliboni, L. S., Agostini, F., Funchal, C., Serafini, L., Henriques, J. A., & Salvador, M. (2010). Phenolic content of grapevine leaves (Vitis labrusca var. Bordo) and its neuroprotective effect against peroxide damage. Toxicology in Vitro, 24(1), 148-153.
- Devi, S., & Singh, R. (2017). Evaluation of antioxidant and anti-hypercholesterolemic potential of Vitis vinifera leaves. Food Science and Human Wellness, 6(3), 131-136.
- Di Lorenzo, C., Colombo, F., Biella, S., Orgiu, F., Frigerio, G., Regazzoni, L., de Sousa, L. P., Bavaresco, L., Bosso, A., Aldini, G., & Restani, P. (2019). Phenolic profile and antioxidant activity of different grape (Vitis vinifera L.) varieties. BIO Web of Conferences, 12, 04005.
- Ergün, E. (2003). Klorofil a ve klorofil b’nin türev spektrofotometrik yöntem ile tayini (Yüksek lisans tezi). İstanbul Teknik Üniversitesi Fen Bilimleri Enstitüsü, İstanbul, Türkiye.
- Göktürk, N., Artık, N., Yavaş, İ., & Fidan, Y. (1997). Bazı üzüm çeşitleri ve asma anacı yapraklarının yaprak konservesi olarak değerlendirilme olanakları üzerinde bir araştırma. Gıda, 22(1).
- Granato, D., Barba, F. J., Kovaˇcevi´c, D. B., Lorenzo, J. M., Cruz, A.G., & Putnik, P. (2020). Functional foods: Product development, technological trends, efficacy testing, and safety. Annual Review of Food Science and Technology, 11, 93-118.
- Gülcü, M., & Torçuk, A.İ. (2016). Yemeklik asma yaprağı üretimi ve pazarlamasında kalite parametreleri. Fruit Science, 1, 75-79.
- Gülcü, M., Ghafoor, K., Al‐Juhaimi, F., Özcan, M. M., Uslu, N., Babiker, E. E., Mohamed Ahmed, I. A., & Azmi, I. U. (2020). Effect of grape (Vitis vinifera L.) varieties and harvest periods on bioactive compounds, antioxidant activity, phenolic composition, mineral contents, and fatty acid compositions of Vitis leave and oils. Journal of Food Processing and Preservation, 44(11), e14890.
- Güler, A., & Candemir, A. (2014). Total phenolic and flavonoid contents, phenolic compositions and color properties of fresh grape leaves. Türk Tarım ve Doğa Bilimleri Dergisi, 1(Özel Sayı-1), 778-782.
- İç, E., & Denli, Y. (1997). Sultani asma yapraklarından salamura yaprak üretimi. Gıda, 22(2).
- Jaradat, N. A., Zaid, A. N., Hussen, F., & İyad, A. (2017). The effects of preservation methods of grapevine leaves on total phenols, total flavonoids and antioxidant activity. Marmara Pharmaceutical Journal, 21(2), 291-297.
- Kazancı, Y. T. (2008). Hıyar turşusu üretiminde farklı asit ve pH’nın renk stabilitesi üzerine etkisi (Yüksek lisans tezi). Uludağ Üniversitesi Fen Bilimleri Enstitüsü, Bursa.
- Khan, Y., Khan, S. M., ul Haq, I., Farzana, F., Abdullah, A., Abbasi, A. M., Alamri, S., Hashem, M., Sakhi, S., Asif, M., & Shah, H. (2021). Antioxidant potential in the leaves of grape varieties (Vitis vinifera L.) grown in different soil compositions. Arabian Journal of Chemistry, 14(11), 103412.
- Koşar, M., Küpeli, E., Malyer, H., Uylaşer, V., Türkben, C., & Başer, K. H. C. (2007). Effect of brining on biological activity of leaves of Vitis vinifera L. (Cv. Sultani Cekirdeksiz) from Turkey. Journal of Agricultural and Food Chemistry, 55(11), 4596-4603.
- Król, A., Amarowicz, R., & Weidner, S. (2014). Changes in the composition of phenolic compounds and antioxidant properties of grapevine roots and leaves (Vitis vinifera L.) under continuous of long-term drought stress. Acta Physiologiae Plantarum, 36, 1491-1499.
- Labanca, F., Faraone, I., Nolè, M. R., Hornedo-Ortega, R., Russo, D., García-Parrilla, M. C., Chiummiento, L., Bonomo, M. G., & Milella, L. (2020). New ınsights into the exploitation of Vitis vinifera L. cv. Aglianico leaf extracts for nutraceutical purposes. Antioxidants, 9(8), 708.
- Lacerda, D. S., Costa, P. C., Funchal, C., Dani, C., & Gomez, R. (2016). Benefits of vine leaf on different biological systems. Grape and Wine Biotechnology, 19, 125-143.
- Matloub, A. A. (2018). Optimization of polyphenol extraction from Vitis vinifera L. leaves, antioxidant activity and its correlation with amelioration effect on AlCl3-induced Alzheimer’s disease. Archives of Pharmaceutical Sciences Ain Shams University, 2(2), 97-110.
- Özer, Z., Kılıç, T., Çarıkçı, S., & Yılmaz, H. (2018). Investigation of phenolic compounds and antioxidant activity of Teucrium polium L. decoction and infusion. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 20(1), 212-218.
- Re, R., Pellegrini, N., Proteggente, A., Pannala, A., Yang, M., & Rice-Evans, C. (1999). Antioxidant activity applying an improved ABTS radical cation decolorization assay. Free Radical Biology and Medicine, 26, 1231-1237.
- Sat, I. G., Sengul, M., & Keles, F. (2002). Use of grape leaves in canned food. Pakistan Journal of Nutrition, 1(6), 257-262.
- Semerci, G. (2019). Asma fidanı yapraklarının salamuralık olarak değerlendirilme imkânları üzerine bir araştırma (Yüksek lisans tezi). Tokat Gaziosmanpaşa Üniversitesi Fen Bilimleri Enstitüsü, Tokat.
- Silva, A., Silva, V., Igrejas, G., Gaivão, I., Aires, A., Klibi, N., Enes Dapkevicius, M. d. L., Valentão, P., Falco, V., & Poeta, P. (2021). Valorization of winemaking by-products as a novel source of antibacterial properties: New strategies to fight antibiotic resistance. Molecules, 26(8), 2331.
- Šuković, D., Knežević, B., Gašić, U., Sredojević, M., Ćirić, I., Todić, S., Mutić, J., & Tešić, Ž. (2020). Phenolic profiles of leaves, grapes and wine of grapevine variety vranac (Vitis vinifera L.) from Montenegro. Foods, 9(2), 138
- Topuz, S., & Bayram, M. (2022). Oleuropein extraction from leaves of three olive varieties (Olea europaea L.): Antioxidant and antimicrobial properties of purified oleuropein and oleuropein extracts. Journal of Food Processing and Preservation, 46(6), e15697.
- Türkyılmaz, M., Tağı, Ş., & Özkan, M. (2017). Narın farklı bölümlerinin polifenol içeriği, antioksidan ve antibakteriyel aktivitesi üzerine ekstraksiyon çözgenlerinin etkisi. Akademik Gıda, 15(2), 109-118.
- Yaylacı, S., & Mertol, H. (2021). Coğrafi işaretli ürünler ve gastronomik lezzetler: Tokat örneği. Ağrı İbrahim Çeçen Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 7(1), 313-334.
- Yolci, M. S., Tunçtürk, R., & Tunçtürk, M. (2022). Farklı ekstraksiyon çözücüleri ve hasat zamanlarının aspir (Carthamus tinctorius L.) çiçeklerinin toplam fenol ve flavonoid miktarları ile antioksidan aktivitesi üzerine etkileri. International Journal of Life Sciences and Biotechnology, 5(1), 97-109.
- Zhang, S., Willett, S. A., Hyatt, J. R., Martini, S., & Akoh, C. C. (2021). Phenolic compounds as antioxidants to improve oxidative stability of menhaden oil-based structured lipid as butterfat analog. Food Chemistry, 334, 127584.
Evaluation of antioxidant activity and some physicochemical characteristics of pickled vine (Vitis vinifera L.) leaves
Yıl 2024,
Cilt: 28 Sayı: 3, 459 - 470, 28.09.2024
Tuba Zorlu Ünlü
,
Semra Topuz
,
Mustafa Bayram
,
Cemal Kaya
Öz
Vine (Vitis vinifera L.) leaves have been used for centuries both to prepare various foods and for medicinal purposes. Vine leaves are processed to pickles for preserved for a long time. In this study, some physicochemical properties, total phenolic compounds and antioxidant activity of the pickled vine leaves produced by industrial or traditional methods from Narince variety grown in Tokat were determined. pH value (3.31-3.95), total acidity (0.3-1.72%), salt content (10.92-23.67%) were determined in pickled vine leaves produced by industrial or traditional methods. Total phenolic compounds for distilled water, 80% ethanol and 70% methanol extracts were determined in the range of 0.55-7.81 mg GAE g-1, 3.98-15.66 mg GAE g-1, 3.49-16.85 mg GAE g-1, respectively. The cation radical scavenging activity (ABTS) for three solvents were determined in the range of 1.87-15.42 mg TE g-1, 2.75-24.85 mg TE g-1, 3.57-25.05 mg TE g-1, while free radical scavenging activity (DPPH) for three solvents were determined in the range of 2.89-8.89 mg TE g-1, 5.46-10.57 mg TE g-1, 6.33-12.13 mg TE g-1, respectively. As a result of the research, it was determined that the pickled vine leaves are rich source in terms of phenolic compounds and antioxidant activity but amount of salt in some samples was very high for consumption. The total phenolic compounds and antioxidant activity results of extracts obtained from pickled vine leaves using ethanol and methanol are close to each other but are higher than the results obtained distilled water.
Destekleyen Kurum
Tokat Gaziosmanpaşa University Scientific Research Projects Unit (TGOÜ-BAP)
Teşekkür
We would like to thank TGOÜ-BAP for funding the study.
Kaynakça
- Akin-Basçam, Z. (2021). Functional composition of grapevine leaf and required procedures for the design of the brine grapevine leaf processing plant. International Journal of Scientific and Technological Research, 7(1), 1-14.
- Alakomi, H. L., Skytta, E., Saarela, M., Mattila-Sandholm, T., Latva-Kala, K., & Helander, I. M. (2000). Lactic acid permeabilizes gram-negative bacteria by disrupting the outer membrane. Applied and Environmental Microbiology, 66(5), 2001-2005.
- Amarowicz, R., Narolewska, O., Karamac, M., Kosinska, A., & Weidner, S. (2008). Grapevine leaves as a source of natural antioxidants. Polish Journal of Food and Nutrition Sciences, 58(1), 73-78.
- AWRI, (2024). Australian Wine Research Institute. Retrieved from: https://awri.com.au.
- Babalık, Z., & Baydar, N. G. (2019). Grape leaves as a natural antioxidant source: Determination of total phenolic compound changes. Turkish Journal of Agriculture-Food Science and Technology, 7(10), 1603-1606.
- Bal, H. S. G., Kaplan, E., & Kaplan, K. (2019). Bağcılık ve salamura yaprak konusunda çiftçi yönelimi ve değerlendirmeleri (Tokat ili Pazar ilçe örneği). 3. Uluslararası UNİDOKAP Karadeniz Sempozyumu, (pp 849-857), 21-23 Haziran, Tokat, Türkiye.
- Banjanin, T., Uslu, N., Vasic, Z. R., & Özcan, M. M. (2021). Effect of grape varieties on bioactive properties, phenolic composition, and mineral contents of different grape‐vine leaves. Journal of Food Processing and Preservation, 45(2), e15159.
- Bintsis, T. (2018). Lactic acid bacteria as starter cultures: An update in their metabolism and genetics. AIMS Microbiology, 4(4), 665-684.
- Blasi, F., Urbani, E., Simonetti, M. S., Chiesi, C., & Cossignani, L. (2016). Seasonal variations in antioxidant compounds of Olea europaea leaves collected from different Italian cultivars. Journal of Applied Botany and Food Quality, 89, 202-207.
- Bodó, A., Csepregi, K., Szata, B. É., Nagy, D. U., Jakab, G., & Kocsis, M. (2017). Bioactivity of leaves, skins and seeds of berry color variant grapevines (Vitis vinifera L.). Research & Reviews: Journal of Pharmacognosy and Phytochemistry, 16-22.
- Cangi, R., & Yağcı, A. (2012). Iğdır yöresinde salamuralık asma yaprağı üretim imkanları. Iğdır University Journal of the Institute of Science and Technology, 2, 9-14.
- Cemeroğlu, B. S. (2013). Gıda Analizleri, 3th ed. Bizim Grup Basımevi, Ankara.
- Ceyhan, N., Keskin, D., Zorlu, Z., & Ugur, A. (2012). In-vitro antimicrobial activities of different extracts of grapevine leaves (Vitis vinifera L.) from West Anatolia against some pathogenic microorganisms. Journal of Pure Applied Microbiology, 6, 1303-1308.
- Çoklar, H. & Akbulut, M. (2016). Alıç (Crataegus orientalis) meyvesinin antioksidan aktivitesi ve fenolik bileşiklerinin ekstraksiyonu üzerine farklı çözgenlerin etkisi. Derim, 33 (2), 237-248.
- Dani, C., Oliboni, L. S., Agostini, F., Funchal, C., Serafini, L., Henriques, J. A., & Salvador, M. (2010). Phenolic content of grapevine leaves (Vitis labrusca var. Bordo) and its neuroprotective effect against peroxide damage. Toxicology in Vitro, 24(1), 148-153.
- Devi, S., & Singh, R. (2017). Evaluation of antioxidant and anti-hypercholesterolemic potential of Vitis vinifera leaves. Food Science and Human Wellness, 6(3), 131-136.
- Di Lorenzo, C., Colombo, F., Biella, S., Orgiu, F., Frigerio, G., Regazzoni, L., de Sousa, L. P., Bavaresco, L., Bosso, A., Aldini, G., & Restani, P. (2019). Phenolic profile and antioxidant activity of different grape (Vitis vinifera L.) varieties. BIO Web of Conferences, 12, 04005.
- Ergün, E. (2003). Klorofil a ve klorofil b’nin türev spektrofotometrik yöntem ile tayini (Yüksek lisans tezi). İstanbul Teknik Üniversitesi Fen Bilimleri Enstitüsü, İstanbul, Türkiye.
- Göktürk, N., Artık, N., Yavaş, İ., & Fidan, Y. (1997). Bazı üzüm çeşitleri ve asma anacı yapraklarının yaprak konservesi olarak değerlendirilme olanakları üzerinde bir araştırma. Gıda, 22(1).
- Granato, D., Barba, F. J., Kovaˇcevi´c, D. B., Lorenzo, J. M., Cruz, A.G., & Putnik, P. (2020). Functional foods: Product development, technological trends, efficacy testing, and safety. Annual Review of Food Science and Technology, 11, 93-118.
- Gülcü, M., & Torçuk, A.İ. (2016). Yemeklik asma yaprağı üretimi ve pazarlamasında kalite parametreleri. Fruit Science, 1, 75-79.
- Gülcü, M., Ghafoor, K., Al‐Juhaimi, F., Özcan, M. M., Uslu, N., Babiker, E. E., Mohamed Ahmed, I. A., & Azmi, I. U. (2020). Effect of grape (Vitis vinifera L.) varieties and harvest periods on bioactive compounds, antioxidant activity, phenolic composition, mineral contents, and fatty acid compositions of Vitis leave and oils. Journal of Food Processing and Preservation, 44(11), e14890.
- Güler, A., & Candemir, A. (2014). Total phenolic and flavonoid contents, phenolic compositions and color properties of fresh grape leaves. Türk Tarım ve Doğa Bilimleri Dergisi, 1(Özel Sayı-1), 778-782.
- İç, E., & Denli, Y. (1997). Sultani asma yapraklarından salamura yaprak üretimi. Gıda, 22(2).
- Jaradat, N. A., Zaid, A. N., Hussen, F., & İyad, A. (2017). The effects of preservation methods of grapevine leaves on total phenols, total flavonoids and antioxidant activity. Marmara Pharmaceutical Journal, 21(2), 291-297.
- Kazancı, Y. T. (2008). Hıyar turşusu üretiminde farklı asit ve pH’nın renk stabilitesi üzerine etkisi (Yüksek lisans tezi). Uludağ Üniversitesi Fen Bilimleri Enstitüsü, Bursa.
- Khan, Y., Khan, S. M., ul Haq, I., Farzana, F., Abdullah, A., Abbasi, A. M., Alamri, S., Hashem, M., Sakhi, S., Asif, M., & Shah, H. (2021). Antioxidant potential in the leaves of grape varieties (Vitis vinifera L.) grown in different soil compositions. Arabian Journal of Chemistry, 14(11), 103412.
- Koşar, M., Küpeli, E., Malyer, H., Uylaşer, V., Türkben, C., & Başer, K. H. C. (2007). Effect of brining on biological activity of leaves of Vitis vinifera L. (Cv. Sultani Cekirdeksiz) from Turkey. Journal of Agricultural and Food Chemistry, 55(11), 4596-4603.
- Król, A., Amarowicz, R., & Weidner, S. (2014). Changes in the composition of phenolic compounds and antioxidant properties of grapevine roots and leaves (Vitis vinifera L.) under continuous of long-term drought stress. Acta Physiologiae Plantarum, 36, 1491-1499.
- Labanca, F., Faraone, I., Nolè, M. R., Hornedo-Ortega, R., Russo, D., García-Parrilla, M. C., Chiummiento, L., Bonomo, M. G., & Milella, L. (2020). New ınsights into the exploitation of Vitis vinifera L. cv. Aglianico leaf extracts for nutraceutical purposes. Antioxidants, 9(8), 708.
- Lacerda, D. S., Costa, P. C., Funchal, C., Dani, C., & Gomez, R. (2016). Benefits of vine leaf on different biological systems. Grape and Wine Biotechnology, 19, 125-143.
- Matloub, A. A. (2018). Optimization of polyphenol extraction from Vitis vinifera L. leaves, antioxidant activity and its correlation with amelioration effect on AlCl3-induced Alzheimer’s disease. Archives of Pharmaceutical Sciences Ain Shams University, 2(2), 97-110.
- Özer, Z., Kılıç, T., Çarıkçı, S., & Yılmaz, H. (2018). Investigation of phenolic compounds and antioxidant activity of Teucrium polium L. decoction and infusion. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 20(1), 212-218.
- Re, R., Pellegrini, N., Proteggente, A., Pannala, A., Yang, M., & Rice-Evans, C. (1999). Antioxidant activity applying an improved ABTS radical cation decolorization assay. Free Radical Biology and Medicine, 26, 1231-1237.
- Sat, I. G., Sengul, M., & Keles, F. (2002). Use of grape leaves in canned food. Pakistan Journal of Nutrition, 1(6), 257-262.
- Semerci, G. (2019). Asma fidanı yapraklarının salamuralık olarak değerlendirilme imkânları üzerine bir araştırma (Yüksek lisans tezi). Tokat Gaziosmanpaşa Üniversitesi Fen Bilimleri Enstitüsü, Tokat.
- Silva, A., Silva, V., Igrejas, G., Gaivão, I., Aires, A., Klibi, N., Enes Dapkevicius, M. d. L., Valentão, P., Falco, V., & Poeta, P. (2021). Valorization of winemaking by-products as a novel source of antibacterial properties: New strategies to fight antibiotic resistance. Molecules, 26(8), 2331.
- Šuković, D., Knežević, B., Gašić, U., Sredojević, M., Ćirić, I., Todić, S., Mutić, J., & Tešić, Ž. (2020). Phenolic profiles of leaves, grapes and wine of grapevine variety vranac (Vitis vinifera L.) from Montenegro. Foods, 9(2), 138
- Topuz, S., & Bayram, M. (2022). Oleuropein extraction from leaves of three olive varieties (Olea europaea L.): Antioxidant and antimicrobial properties of purified oleuropein and oleuropein extracts. Journal of Food Processing and Preservation, 46(6), e15697.
- Türkyılmaz, M., Tağı, Ş., & Özkan, M. (2017). Narın farklı bölümlerinin polifenol içeriği, antioksidan ve antibakteriyel aktivitesi üzerine ekstraksiyon çözgenlerinin etkisi. Akademik Gıda, 15(2), 109-118.
- Yaylacı, S., & Mertol, H. (2021). Coğrafi işaretli ürünler ve gastronomik lezzetler: Tokat örneği. Ağrı İbrahim Çeçen Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 7(1), 313-334.
- Yolci, M. S., Tunçtürk, R., & Tunçtürk, M. (2022). Farklı ekstraksiyon çözücüleri ve hasat zamanlarının aspir (Carthamus tinctorius L.) çiçeklerinin toplam fenol ve flavonoid miktarları ile antioksidan aktivitesi üzerine etkileri. International Journal of Life Sciences and Biotechnology, 5(1), 97-109.
- Zhang, S., Willett, S. A., Hyatt, J. R., Martini, S., & Akoh, C. C. (2021). Phenolic compounds as antioxidants to improve oxidative stability of menhaden oil-based structured lipid as butterfat analog. Food Chemistry, 334, 127584.