Assessment of sesame oil fatty acid and sterol composition with FT-NIR  spectroscopy and chemometrics

İbrahim Sani ÖZDEMİR; Öznur KARAOĞLU; Çağdaş DAĞ; Somer BEKİROĞLU

Makale detayları

Assessment of sesame oil fatty acid and sterol composition with FT-NIR spectroscopy and chemometrics

Yazarlar:

İbrahim Sani ÖZDEMİR | Öznur KARAOĞLU | Çağdaş DAĞ | Somer BEKİROĞLU

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2018 Vol.42 Issue 6, pp.444-452

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000806334

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Özet:

 


 
                         In this study the Fourier transform-near infrared (FT-NIR) spectroscopy technique was used to predict the fatty acid and
sterol content of sesame. For this purpose, partial least square regression (PLS-R)-based prediction models were developed, which relate
the FT-NIR spectra to reference GC measurements. In total, 39 sesame samples were collected from local producers around Muğla
Province. Sesame oil was extracted from the seeds by using a screw press and extracted oil samples were analyzed without any refining.
The results showed that among different fatty acids found in sesame oil, oleic and linoleic acid contents (which account for 85% of the
total fatty acids) can be precisely predicted with corresponding PLS-R models having R2 = 0.991, RMSECV = 0.092%, RPD = 10.7 and
R2 = 0.988, RMSECV = 0.118, RPD = 9.01, respectively. Similarly, good model performances were obtained for the fatty acids grouped
according to their saturation degree, namely saturated, monounsaturated, and polyunsaturated fatty acids with R2, RMSECV, and RPD
values in the ranges of 0.865-0.976, 0.148%-0.148%, and 2.72-6.41, respectively. In addition, models with moderate quality for the
ß-sitosterol and Δ5-avenasterol content of the sesame oils could be established with R2 = 0.756, RMSECV = 0.651%, RPD = 2.04 for
ß-sitosterol and R2 = 0.823, RMSECV = 0.343%, RPD = 2.38 for Δ5-avenasterol content models. In conclusion, FT-NIR spectroscopy was
proved to be a valuable analytical technique that enables rapid and simultaneous measurement of the major lipid constituents of sesame
oil, which can be used effectively in quality control and breeding studies of sesame.

                    

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Makale detayları

Assessment of sesame oil fatty acid and sterol composition with FT-NIR spectroscopy and chemometrics

Yazarlar: İbrahim Sani ÖZDEMİR | Öznur KARAOĞLU | Çağdaş DAĞ | Somer BEKİROĞLU

Yayıncı: TUBITAK

Dergi: Turkish Journal of Agriculture and Forestry 2018 Vol.42 Issue 6, pp.444-452

Belge Tipi: Makale

Yayın Tarihi: 12/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000806334

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

Sayı

Yazarlar:

İbrahim Sani ÖZDEMİR | Öznur KARAOĞLU | Çağdaş DAĞ | Somer BEKİROĞLU

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2018 Vol.42 Issue 6, pp.444-452

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000806334

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X