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The author thanks Marco Leona, Scientist-in-Charge of the Department of Scientific Research at the Metropolitan Museum of Art for conducting fluorescence spectrometry on Wheel of Fortune and a valuable discussion of the research, as well as Silvia Centeno, Research Scientist at the Metropolitan Museum of Art, who performed Raman analysis on the watercolors and also contributed her insight. The phenomenon of the phosphorescing lithopone was originally discovered during the author's fellowship in the Sherman Fairchild Center for the Conservation of Works on Paper, funded by the Andrew W. Mellon Foundation. The author thanks all her colleagues for their ideas and support during the research of this paper, and special thanks to Rachel Mustalish for her assistance in editing this work.

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 At present, Lide powder is mainly produced in China. Most of the domestic Lide powder production is still using traditional methods. The main raw materials are zinc oxide, sulfuric acid and barium sulfide (barite and coal are produced by high temperature reduction). Zinc 45% ~ 70%. The traditional method for producing the Liede powder process is to use zinc bakelite containing more than 45% zinc as a raw material to be leached with sulfuric acid to obtain a crude zinc sulfate solution, and then to remove iron by potassium permanganate, and then replace the heavy metal with zinc powder and filter to obtain zinc sulfate. The refined liquid is further subjected to metathesis reaction, pressure filtration, calcination, rinsing, drying, and pulverization with strontium sulfide to obtain a series of different types of lindose powder containing zinc sulfide of 30% or more. The whole process is carried out in an acidic (ra<7) environment, which consumes a large amount of sulfuric acid. The sulfuric acid has strong corrosiveness and requires high production equipment. The final discharged slag is acidic slag, which brings new pollution to the environment. High requirements, high production costs, and poor quality of the products obtained.

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  • Traditional
  • In addition to its culinary uses, paprika extract also has several health benefits. It is rich in antioxidants, which can help protect the body from damage caused by free radicals. It also contains vitamins A and C, which are essential for a healthy immune system and skin.
    1. These peppers are then dried to perfection. Then, the dried peppers are turned into powder form.

    2. Upon entering the factory, one is greeted by the invigorating aroma of freshly picked peppers. The first stage of the process begins with the selection of the finest cayenne pepper pods. Each batch is meticulously sorted by hand, ensuring only the ripest and healthiest peppers make the cut. This human touch is a critical part of the quality control, preserving the integrity and flavor profile of the final product.
    3. Dehydrator
    4. Another advantage of using smoked paprika is its health benefitssmoked paprika. It contains high levels of antioxidants, which help protect against cellular damage caused by free radicals. Additionally, it has anti-inflammatory properties that may reduce the risk of chronic diseases such as heart disease and cancer.
    5. Once harvested, the transformation is both an art and a science. The drying process is meticulously controlled to preserve the capsaicin, the compound responsible for the pepper's heat, and the alluring color that signifies freshness and potency. Some suppliers take pride in traditional methods, using the sun's warmth to naturally dehydrate the peppers, while others employ modern technology to ensure consistent quality on a larger scale.
    6. One of the most well-known brands of hot chili sauce is Huy Fong Foods' Sriracha sauce. Produced in California, this iconic sauce is loved for its bold flavor and versatility. Whether used as a dipping sauce for spring rolls, a topping for noodles, or a marinade for grilled meats, hot chili sauce can elevate the taste of any meal.


    7. Chilito powder exporters play a crucial role in the global spice trade by sourcing high-quality chilies, processing them into powder form, and shipping them to various markets. These exporters work closely with chili farmers to ensure a steady supply of raw materials and maintain the quality of the final product. They also adhere to strict quality control standards to meet the requirements of international markets.
    8. Despite the challenges posed by climate variability, disease outbreaks, and logistical hurdles, the dried chile pod export industry continues to thrive. It not only enriches global cuisine but also supports local economies, especially in rural areas where chili cultivation is a major source of livelihood.
    9. In the world of spices, our fresh ground turmeric factory stands tall, a symbol of our dedication to preserving age-old wisdom while embracing modern techniques. It's more than just a factory; it's a celebration of nature's healing power, encapsulated in every golden granule.
    10. Quality control is paramount in these factories. Each batch undergoes rigorous testing to ensure it meets strict standards for potency, purity, and safety. Advanced analytical instruments are employed to detect any impurities or contaminants, ensuring that the final product is safe for consumption Advanced analytical instruments are employed to detect any impurities or contaminants, ensuring that the final product is safe for consumption Advanced analytical instruments are employed to detect any impurities or contaminants, ensuring that the final product is safe for consumption Advanced analytical instruments are employed to detect any impurities or contaminants, ensuring that the final product is safe for consumptionorganic turmeric extract factory.