The amino acid composition of kale (Brassica oleracea L. var. acephala), fresh and after culinary and technological processing

Lisiewska, Zofia; Kmiecik, W.; Korus, Anna

doi:10.1016/j.foodchem.2007.11.030

Cited by 64 publications

(61 citation statements)

References 22 publications

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“…The spectral collection software was WIN ISI II V1.5. The protocol for amino acid extraction and activity assay was based on the Lisiewska method with some modifications (Lisiewska et al 2008). The content of amino acids was determined using a HITACHI amino acid analyzer (Model: L-8900, Japan).…”

Section: Spectral Acquisition and Reference Methods For Taamentioning

confidence: 99%

“…Previous studies indicated that the biological activity and harmful symptoms of the plant treated by ZJ0273 were similar with that treated by the acetolactate synthase (ALS, as referred to acetohydroxyacid synthase)-inhibiting herbicides (Tang et al 2005;. The traditional detection method of amino acids was Lisiewska method (Lisiewska et al 2008), which was time-consuming, laborious, and not convenient for the onfield monitoring of the inhibitory effects of herbicide ZJ0273.…”

Section: Introductionmentioning

confidence: 99%

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Applying Near-Infrared Spectroscopy and Chemometrics to Determine Total Amino Acids in Herbicide-Stressed Oilseed Rape Leaves

Liu

Jin

Naeem

et al. 2010

Food Bioprocess Technol

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Near-infrared (NIR) spectroscopy was investigated to determine the total amino acids (TAA) in oilseed rape (Brassica napus L.) leaves under a new herbicidepropyl 4-(2-(4,6-dimethoxypyrimidin-2-yloxy)benzylamino)benzoate (ZJ0273)-stress. In full-spectrum partial least squares (PLS) models, direct orthogonal signal correction (DOSC) was the best preprocessing method. Successive projections algorithm (SPA) was used to select the relevant variables. Multiple linear regression (MLR), PLS, and least squares-support vector machine (LS-SVM) were used for calibration. The DOSC-SPA-LS-SVM model achieved the best prediction performance with correlation coefficients r=0.9968 and root mean squares error of prediction (RMSEP) =0.2950 comparing all SPA-MLR, SPA-PLS, and SPA-LS-SVM models. Some parsimonious direct functions were also developed based on the DOSC-SPA wavelength (1,340 nm) such as linear, index, logarithmic, binominal, and exponential functions. The best performance was achieved by direct exponential function with r=0.9968 and RMSEP=0.2943. The overall results indicated that NIR was able to determine the TAA in herbicide-stressed oilseed rape leaves, and the DOSC-SPA was quite helpful for the development of detection sensors and the monitoring of the growing status and herbicide effect on field crop oilseed rape.

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Section: Spectral Acquisition and Reference Methods For Taamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Applying Near-Infrared Spectroscopy and Chemometrics to Determine Total Amino Acids in Herbicide-Stressed Oilseed Rape Leaves

Liu

Jin

Naeem

et al. 2010

Food Bioprocess Technol

View full text Add to dashboard Cite

show abstract

“…acephala) is a leafy green vegetable belonging to the Brassica group, which is well recognized as a rich source of vitamins, flavonoids, minerals, dietary fibre, and antioxidative compounds (Lisiewska et al, 2008). Thus, it becomes one of the famous green leafy vegetable juices consumed in South Korea (Kim et al, 2008) and the fastest growing superfood in the US (Wong, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it becomes one of the famous green leafy vegetable juices consumed in South Korea (Kim et al, 2008) and the fastest growing superfood in the US (Wong, 2014). The availability of fresh kale, however, is seasonal (Lisiewska et al, 2008) and there has also been an evident concern about its microbial safety and quality due to it is mostly consumed raw (USDA, 2012).…”

Section: Introductionmentioning

confidence: 99%

Combined effects of thermosonication and slightly acidic electrolyzed water on the microbial quality and shelf life extension of fresh-cut kale during refrigeration storage

Mansur

2015

Food Microbiology

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“…This experiment and calibration was specific for glutamic acid, not a fairly constant proportion of total protein content. The chemical pretreatment and operation steps of oilseed rape leaf were based on the Lisiewska method [13]. The analyzer was implemented under a normal analytical condition.…”

Section: Methodsmentioning

confidence: 99%

Detection of Glutamic Acid in Oilseed Rape Leaves Using Near Infrared Spectroscopy and the Least Squares-Support Vector Machine

Bao

Kong

Liu

et al. 2012

IJMS

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Amino acids are quite important indices to indicate the growth status of oilseed rape under herbicide stress. Near infrared (NIR) spectroscopy combined with chemometrics was applied for fast determination of glutamic acid in oilseed rape leaves. The optimal spectral preprocessing method was obtained after comparing Savitzky-Golay smoothing, standard normal variate, multiplicative scatter correction, first and second derivatives, detrending and direct orthogonal signal correction. Linear and nonlinear calibration methods were developed, including partial least squares (PLS) and least squares-support vector machine (LS-SVM). The most effective wavelengths (EWs) were determined by the successive projections algorithm (SPA), and these wavelengths were used as the inputs of PLS and LS-SVM model. The best prediction results were achieved by SPA-LS-SVM (Raw) model with correlation coefficient r = 0.9943 and root mean squares error of prediction (RMSEP) = 0.0569 for prediction set. These results indicated that NIR spectroscopy combined with SPA-LS-SVM was feasible for the fast and effective detection of glutamic acid in oilseed rape leaves. The selected EWs could be used to develop spectral sensors, and the important and basic amino acid data were helpful to study the function mechanism of herbicide.

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The amino acid composition of kale (Brassica oleracea L. var. acephala), fresh and after culinary and technological processing

Cited by 64 publications

References 22 publications

Applying Near-Infrared Spectroscopy and Chemometrics to Determine Total Amino Acids in Herbicide-Stressed Oilseed Rape Leaves

Applying Near-Infrared Spectroscopy and Chemometrics to Determine Total Amino Acids in Herbicide-Stressed Oilseed Rape Leaves

Combined effects of thermosonication and slightly acidic electrolyzed water on the microbial quality and shelf life extension of fresh-cut kale during refrigeration storage

Detection of Glutamic Acid in Oilseed Rape Leaves Using Near Infrared Spectroscopy and the Least Squares-Support Vector Machine

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