Analysis of Lard in Palm Oil Using Long-Wave Near-Infrared (LW-NIR) Spectroscopy and Gas Chromatography-Mass Spectroscopy (GC-MS)

被引:13
作者
Hussain, Mutia Nurulhusna [1 ]
Basri, Katrul Nadia [2 ]
Arshad, Syariena [1 ]
Mustafa, Shuhaimi [3 ]
Khir, Mohd Fared Abdul [4 ]
Bakar, Jamilah [5 ]
机构
[1] Univ Putra Malaysia, Halal Prod Res Inst, Lab Halal Sci Res, Serdang 43400, Malaysia
[2] MIMOS Berhad, Photon R&D, Technol Pk Malaysia, Kuala Lumpur 57000, Malaysia
[3] Univ Putra Malaysia, Fac Biotechnol & Biomol Sci, Dept Microbiol, Upm Serdang 43400, Selangor, Malaysia
[4] Univ Sains Islam Malaysia, Fac Sci & Technol, Nilai 71800, Negeri Sembilan, Malaysia
[5] Univ Putra Malaysia, Fac Food Sci & Technol, Dept Food Technol, Upm Serdang 43400, Selangor, Malaysia
关键词
Long-wave NIR Spectroscopy; LW-NIR; Lard; Palm Oil; Chemometrics; Adulteration; REFLECTANCE SPECTROSCOPY; VEGETABLE-OILS; ADULTERATION; MEAT; QUANTIFICATION; QUALITY; FATS;
D O I
10.1007/s12161-022-02423-y
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Adulteration of food products has become a common problem in many countries. Adulteration may take the form of substitution of one species for another, where the food products from one species have been mixed intentionally with either a similar substitute material or a cheaper species. However, the use of pork and lard is a serious matter in Islam because foods containing ingredients from pig sources are haram (unlawful or prohibited) for Muslims to consume. Conventional techniques such as chromatography are time-consuming and require high capital cost. A possible way out is to use the rapid and less expensive near-infrared (NIR) spectroscopy. Therefore, in this study, apart from the conventional gas chromatography analysis, a variant of NIR spectroscopy, i.e., the long-wave NIR (LW-NIR) spectroscopy system at 1350-2450 nm region in combination with chemometrics analysis was used for detecting and quantifying lard adulteration in palm oil (PO). The result has shown that the samples with a minimum level of adulteration as low as 0.5% could still be easily detected with an overall correct classification rate using linear discriminant analysis (LDA) in the Open-source R software. PLS calibration gives good results between predicted and measured data in quantification, showing linear correlation with coefficient of determination (R-2) at 0.9987. The result agreed well with the gas chromatography-mass spectroscopy (GC-MS) analysis and suggests the feasibility of LW-NIR spectroscopy as an efficient method for detecting and quantifying lard in palm oil.
引用
收藏
页码:349 / 355
页数:7
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