CAJ | 학술논문

以老陈醋作为研究对象，研究了选用1，2，5 mm 不同光程对醋龄的定性分析与可溶性固形物（SSC）和有效酸度（pH）定量分析模型的影响，发现采用1 mm光程的近红外透射光频谱通过5点平滑处理后建立的老陈醋定量与定性分析模型最优，并且随着光程的增大，建立的模型的稳定性和预测准确性均变坏。当光程增加到5 mm时，模型的预测准确性只能达到50％左右，不能有效地对醋龄、可溶性固形物的含量和pH 值进行预测，进而可以推广采用近红外光谱检测技术对液态调味品的定量与定性分析，应结合食品的特性选择合适的光程以增大检测的准确性和可靠性。
이로진작작위연구대상，연구료선용1，2，5 mm 불동광정대작령적정성분석여가용성고형물（SSC）화유효산도（pH）정량분석모형적영향，발현채용1 mm광정적근홍외투사광빈보통과5점평활처리후건립적로진작정량여정성분석모형최우，병차수착광정적증대，건립적모형적은정성화예측준학성균변배。당광정증가도5 mm시，모형적예측준학성지능체도50％좌우，불능유효지대작령、가용성고형물적함량화pH 치진행예측，진이가이추엄채용근홍외광보검측기술대액태조미품적정량여정성분석，응결합식품적특성선택합괄적광정이증대검측적준학성화가고성。
The aged vinegar is selected as the research object,the influences of different optical dis-tances ,such as 1 ,2 ,5 mm on qualitative analysis model of vinegar age and qualitative analysis model of soluble solid content (SSC)and effective acidity (pH)are researched.It is found that the qualita-tive and quantitative analysis model of aged vinegar established after 5-point processing with near-in-frared optical frequency spectrum with optical distance of 1 mm is the optimal and with the increasing of optical distance,both the stability and forecast accuracy of the model established become worse, when the optical distance increases to 5 mm,the forecast accuracy of the model is only about 50%, which is unable to forecast the vinegar age,soluble solid content and pH value,so near-infrared spec-tral detection technology can be promoted and used for qualitative and quantitative analysis on the liq-uid-state condiment and the appropriate optical distance should be selected in combination with the characteristics of food to increase the detection accuracy and reliability.