Versatile smart packages provide information on the freshness of the content and help protect the content from microorganisms. In this sense, in this study both natural antimicrobial properties and pH sensitive natural dyes were obtained from red beet. Inks were prepared and printed using this dye and their suitability for smart packaging was investigated. For this purpose, red beet was cut into small sizes and mixed separately in ethanol and water (1:2) at 200 rpm. The betaine dye was taken up in solvent. These solvents were removed with evaporator and precipitated with centrifugation and dried in a vacuum oven. The chemical structure of the obtained dye was illuminated by Attenuated Total Reflection‐Fourier Transform Infrared Spectroscopy (ATR‐FTIR). The color character was determined by UV spectroscopy. Pink colored natural ink was produced by using ink varnish with carboxymethyl cellulose polymer and solid dye. Screen printing was made with this ink and the color, gloss, and lightfastness characters of prints were examined. Antimicrobial effects of the obtained prints were measured against Staphylococcus aureus and Escherichia coli. Mordanting studies were performed with (KAl[SO₄]₂.12H₂O) and change in color character was measured. The prints produced using the red beet extract have a yellow‐orange color in the basic state; in acid cases it was determined to have a pink‐purple color. In addition, it has been found that the ink prints obtained from red beet have antimicrobial properties against bacteria. Results prove that produced samples have good antimicrobial, pH indicator, and printability properties. This colorant can be used in smart food packaging.

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用于智能食品包装的天然油墨生产和可印刷性研究

多功能智能包装可提供有关内容新鲜度的信息，并有助于保护内容免受微生物侵害。从这个意义上讲，在这项研究中，天然抗微生物特性和对pH敏感的天然染料均从红甜菜中获得。使用这种染料制备并印刷了墨水，并研究了它们对智能包装的适用性。为此，将红甜菜切成小块，并分别以200 rpm的速度在乙醇和水（1：2）中混合。甜菜碱染料被吸收在溶剂中。用蒸发器除去这些溶剂，并通过离心沉淀并在真空炉中干燥。所得染料的化学结构通过衰减全反射傅里叶变换红外光谱（ATR-FTIR）进行照明。通过UV光谱法确定颜色特征。通过使用带有羧甲基纤维素聚合物和固体染料的油墨清漆来生产粉红色的天然油墨。用这种油墨进行丝网印刷，并检查印刷品的颜色，光泽和耐光性。测量获得的印刷品的抗菌效果金黄色葡萄球菌和大肠杆菌。用（KAl [SO ₄ ] ₂ .12H ₂ O）进行Mordanting研究，并测量颜色特征的变化。使用红色甜菜提取物制成的印刷品在基本状态下呈橙黄色；在酸性情况下，确定为粉红色紫色。另外，已经发现，从红甜菜获得的油墨印刷品具有抗细菌的抗菌性能。结果证明所生产的样品具有良好的抗菌性，pH指示剂和适印性。该着色剂可用于智能食品包装。