FENİLKETONÜRİ HASTALARI İÇİN FENİLALANİN İÇERİĞİ AZALTILMIŞ BİR UN GELİŞTİRİLMESİ
Yıl 2018,
Cilt: 43 Sayı: 5, 812 - 825, 01.10.2018
Özlem Kılıç Büyükkurt
,
Atike Nur Durak
,
Mustafa Erbaş
Öz
Fenilketonüri (FKU) hastalığının tedavisinde,
fenilalanince kısıtlı diyet tedavinin temelini oluşturmaktadır. Bu nedenle; FKU
hastalarının diyetlerinde önemli bir çeşitlilik oluşturmak için buğday unundan
fenilalanin içeriği azaltılmış yeni bir un (FAUN) hazırlanması amaçlanmıştır.
Bu amaçla, unda bulunan proteinler in vitro olarak hidroliz edilmiş ve
amino asitlerin serbestleşmesi sağlanmıştır. Serbestleşebilen bu amino
asitlerin içerisindeki fenilalaninin miktarını azaltmak için ise, hidrolizata
fenilalanin amonyum liyaz (FAL) enzimi içeren mısır filizi ekstraktı uygulanmış
ve sonrasında elde edilen ürün kurutularak tekrar un haline getirilmiştir.
Araştırma sonucunda, in vitro hidroliz ile unun serbest fenilalanin
içeriğinin yaklaşık 15 kat arttığı ve 6.09 μmol/sa.g FAL enzim aktivitesine
sahip mısır filizi ekstraktı uygulamasının da unun serbest fenilalanin
içeriğini yaklaşık %50 oranında azalttığı tespit edilmiştir. Ayrıca FAUN ile
üretilen bisküvilerin, duyusal özellikleri 9 puanlık hedonik skalaya göre yapılan
değerlendirmede 4.5 ve daha yüksek puanları aldığı tespit edilmiştir.
Kaynakça
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- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 02-52. The Association: St. Paul, MN, the U.S.A.
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 32-40. The Association: St. Paul, MN, the U.S.A.
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 46-12. The Association: St. Paul, MN, the U.S.A.
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 56-20. The Association: St. Paul, MN, the U.S.A.
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- Barron, C.C., Sponagle, B.J.D., Arivalagan, P., D’cunha, G.B. (2017). Optimization of oligomeric enzyme activity in ionic liquids using Rhodotorula glutinis yeast phenylalanine ammonia lyase. Enzyme Microb Technol, 96: 151–156, doi: 10.1016/j.enzmictec.2016.10.010.
- Bashir, K., Swer, T.L., Prakash, K.S., Aggarwal, M. (2017). Physicochemical and functional properties of gamma irradiated whole wheat flour and starch. LWT - Food Sci Technol, 76: 131-139, doi: 10.1016/j.lwt.2016.10.050.
- Candal, C., Kılıç, Ö., Erbaş, M. (2016). Enzime Dirençli Nişasta Üretim Yöntemleri ve Gıda Endüstrisinde Kullanım Amaçları. GIDA 41 (6): 419-426, doi: 10.15237/gida.GD16015.
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DEVELOPMENT OF A NEW OF FLOUR WITH REDUCED PHENYLALANINE CONTENT FOR PHENYLKETONURIA PATIENTS
Yıl 2018,
Cilt: 43 Sayı: 5, 812 - 825, 01.10.2018
Özlem Kılıç Büyükkurt
,
Atike Nur Durak
,
Mustafa Erbaş
Öz
Phenylalanine-restricted diet is
the basis of treatment for phenylketonuria (PKU). Therefore; it was aimed to prepare new flour with reduced phenylalanine
(FRP) content from wheat flour in order to create a significant diversity in
PKU patients’ diet. For this purpose, proteins in flour were hydrolyzed by in
vitro and amino acids were released. In order to reduce the amount of
phenylalanine in these free-amino acids, corn seedling extracts containing
phenylalanine ammonium lyase (PAL) was applied to hydrolysate, the resulting
product was dried and obtained again flour. As a result of the research, it was
determined that free phenylalanine content of flour was increased about 15-fold
by in vitro and application of corn seedling extract with PAL enzyme
activity of 6.09 μmol/h.g reduced about 50% of free phenylalanine content of
flour. It was also determined that biscuits produced with FRP had sensorial
scores of 4.5 or higher, based on the hedonic scale of 9 points.
Kaynakça
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 02-31. The Association: St. Paul, MN, the U.S.A.
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 02-52. The Association: St. Paul, MN, the U.S.A.
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 32-40. The Association: St. Paul, MN, the U.S.A.
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 46-12. The Association: St. Paul, MN, the U.S.A.
- AACC (2011). American Association of Cereal Chemists, Approved Methods of Analysis. 11th Edition. rev. Methods 56-20. The Association: St. Paul, MN, the U.S.A.
- Ade-Omowaye, B.I.O., Akinwande, B.A., Bolarinwa, I.F., Adebiyi, A.O. (2008). Evaluation of tigernut (Cyperus esculentus) –wheat composite flour and bread. Afr J Food Sci, 2: 087-091.
- Adeleke R.O., Odedeji J.O. (2010). Functional Properties of Wheat and Sweet Potato Flour Blends. Pakistan J Nutr, 9(6): 535-538, doi: 10.3923/pjn.2010.535.538.
- Anonymous (2013). Türk Gıda Kodeksi. Buğday Unu Tebliği (2013/9). Gıda Tarım ve Hayvancılık Bakanlığı. 2 Nisan 2013 tarih ve 28606 sayılı Resmî Gazete, Ankara.
- Arcila, J.A., Rose, D.J. (2015). Repeated cooking and freezing of whole wheat flour increases resistant starch with beneficial impacts on in vitro fecal fermentation properties. J Funct Food, 12: 230–236, doi: 10.1016/j.jff.2014.11.023.
- Babaoğlu-Aydaş, S., Ozturk, S., Aslım, B. (2013). Phenylalanine ammonia lyase (PAL) enzyme activity and antioxidant properties of some cyanobacteria isolates. Food Chem, 136(1): 164–169, doi: 10.1016/j.foodchem.2012.07.119.
- Babaoğlu-Aydaş, S., Şirin, S., Aslim, B. (2016). Biochemical analysis of Centaurea depressa phenylalanine ammonia lyase (PAL) for biotechnological applications in phenylketonuria (PKU). Pharm Biol, 54 (12): 2838– 2844.
- Bannick, A.A., Laufman, J.D., Edwards, H.L., Ventimiglia, J., Feldman, G.L. (2015). Outcomes of referrals to Child Protective Services for medical neglect in patients with phenylketonuria: Experiences at a single treatment center. Mol Genet Metab, 115(4): 151-6, doi: 10.1016/j.ymgme.2015.06.003.
- Banta-Wright, S.A., Kodadek, S.M., Steiner R.D. Houck, G.M. (2015). Challenges to breastfeeding infants with phenylketonuria. J Pediatr Nurs, 30: 219–226, doi: 10.1016/j.pedn.2014.05.003.
- Barron, C.C., Sponagle, B.J.D., Arivalagan, P., D’cunha, G.B. (2017). Optimization of oligomeric enzyme activity in ionic liquids using Rhodotorula glutinis yeast phenylalanine ammonia lyase. Enzyme Microb Technol, 96: 151–156, doi: 10.1016/j.enzmictec.2016.10.010.
- Bashir, K., Swer, T.L., Prakash, K.S., Aggarwal, M. (2017). Physicochemical and functional properties of gamma irradiated whole wheat flour and starch. LWT - Food Sci Technol, 76: 131-139, doi: 10.1016/j.lwt.2016.10.050.
- Candal, C., Kılıç, Ö., Erbaş, M. (2016). Enzime Dirençli Nişasta Üretim Yöntemleri ve Gıda Endüstrisinde Kullanım Amaçları. GIDA 41 (6): 419-426, doi: 10.15237/gida.GD16015.
- Castañeda, M.T., Adachi, O., Hours, R.A. (2015). Reduction of L‑phenylalanine in protein hydrolysates using L‑phenylalanine ammonia‑lyase from Rhodosporidium toruloides. J Ind Microb Biotech, 42(10): 1299-307. doi: 10.1007/s10295-015-1664-z.
- Cleary, M.A. (2014). Phenylketonuria. Symposium: Inborn Errors of Metabolism. Paediatrics and Child Health, 25: 3.
- Crujeiras, V., Aldámiz-Echevarría, L. Dalmau, J., Vitoria, I., Andrade, F., Roca, I., Leis, R., Fernandez-Marmiesse, A., Couce, M.L. (2015). Vitamin and mineral status in patients with hyperphenylalaninemia. Mol Genet Metab, 115: 145–150, doi: 10.1016/j.ymgme.2015.06.010.
- Da Encarnação, J.A., Farrell, T.L., Ryder, A., Kraut, N.U., Williamson, G. (2015). In vitro enzymic hydrolysis of chlorogenic acids in coffee. Mol Nutr Food Res, 59(2): 231–239, doi: 10.1002/mnfr.201400498.
- Elgün, A., Ertugay, Z., Certel, M., Kotancılar, H.G. (2002). Tahıl ve Ürünlerinde Analitik Kalite Kontrolü Laboratuvar Uygulama Kılavuzu, Atatürk Üniversitesi Ziraat Fakültesi Ofset Tesisi: 335, Erzurum, Türkiye, 245 s.
- Evans, S., Daly, A., Chahal, S., Ashmore, C., MacDonald, J., MacDonald, A. (2018). The influence of parental food preference and neophobia on children with phenylketonuria (PKU). Mol Genet Metab Rep, 14: 10–14, doi: 10.1016/j.ymgmr.2017.10.007.
- Fennema, O.W. (1996). Food Chemistry. Marcel Dekker Inc., New York, USA, 1067 p.
- Gianfrani, C., Camarca, A., Mazzarella, G., Di Stasio, L., Giardullo, N., Ferranti, P., Picariello, G., Rotondi Aufiero, V., Picascia, S., Troncone, R., Pogna, N., Auricchio, S., Mamone, G. (2015). Extensive in vitro gastrointestinal digestion markedly reduces the immune-toxicity of Triticum monococcum wheat: Implication for celiac disease. Mol Nutr Food Res, 59(9): 1844–1854, doi: 10.1002/mnfr.201500126.
- Goldar, P., Givianrad, M.H., Shams, A. (2016). Effect of ultrafiltered milk permeate and non-dairy creamer powder concentration on low phenylalanine yoghurt’s physicochemical properties during storage. J Food Sci Technol, 53(7): 3053-3059.
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