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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Rapid Assessment of Quality Parameters in Processing Tomatoes Using Hand-Held and Benchtop Infrared Spectrometers and Multivariate Analysis
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Rapid Assessment of Quality Parameters in Processing Tomatoes Using Hand-Held and Benchtop Infrared Spectrometers and Multivariate Analysis

机译:使用手持式和台式红外光谱仪和多元分析快速评估加工番茄的质量参数

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摘要

Two portable infrared sensors were evaluated for the rapid determination of quality parameters in processing tomatoes. A total of 370 hot-break juices were prepared from ~40 processing tomato varieties grown in 5 California counties. The levels of sugars, acids, soluble solids, titratable acidity, and pH in these juices were determined using standard reference methods. Juices were processed, filtered, and directly applied to the FT-IR crystal (15-40 μL) to obtain spectra. Partial least-squares regression (PLSR) was used to generate correlation models, both calibration and validation. The PLS validation models showed good ability (R_(val) > 0.80; < 10% SEP) in estimating the sugars, acids, and especially soluble solids in tomato for both the transmission DialPath portable system and benchtop unit using triple-bounce attenuated total reflectance (ATR), The IR portable unit may provide the tomato processing industry with an efficient method for in-plant, high throughput quantification of quality parameters in tomatoes.
机译:对两个便携式红外传感器进行了评估,以快速确定加工番茄时的质量参数。从加利福尼亚州5个县种植的约40种加工番茄品种中制备了370种热榨果汁。使用标准参考方法确定这些果汁中的糖,酸,可溶性固体,可滴定酸度和pH值。果汁经过处理,过滤后直接应用于FT-IR晶体(15-40μL),以获得光谱。偏最小二乘回归(PLSR)用于生成相关模型,包括校准和验证。 PLS验证模型显示出良好的能力(R_(val)> 0.80; <10%SEP),对于透射DialPath便携式系统和台式装置,使用三重反弹衰减的全反射率,估算番茄中的糖,酸,尤其是可溶性固体(ATR),IR便携式装置可以为番茄加工业提供一种有效的方法,用于对番茄中的质量参数进行厂内,高通量定量。

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