Soybeans boast nearly 40 percent protein by weight. This impressive concentration has positioned soybeans as the cornerstone of plant-based nutrition, offering vegetarians and vegans an unparalleled protein source that rivals any animal product. With a completely cholesterol-free nature, rich dietary fiber and complex carbohydrates, it has earned the poetic designation "meat of the field."

For generations, soybeans have served as a culinary pillar of Taiwanese cuisine, manifesting in countless forms: soy milk, tofu; fermented products like soy sauce, doubanjiang (fermented bean paste), distilled soybean oil; or even the modern innovation of plant-based meat—all testament to the soybean's remarkable adaptability. When soybeans are harvested at their peak of youth—while the seeds remain tender and immature within their characteristic fuzzy green pods—they transform into edamame. Today, Taiwan's Pingtung County stands as the epicenter of this green revolution, producing edamame of such exceptional quality that it has earned the name "green gold." The superiority of Taiwanese edamame over its East Asian counterparts has captivated Japanese palates with particular intensity. Approximately 80 percent of Taiwan's edamame exports flow directly to Japan, where Taiwanese producers command an impressive 50 percent market share.

The Revival of Taiwan's Indigenous Soybeans

Taiwan stands as one of the largest consumers of soybeans, yet domestic production accounts for less than one percent of consumption, with the vast majority imported from abroad. The soybeans cultivated by local farmers represent foreign-bred varieties, adapted and improved overseas. Yet according to archival records from 1928, during the Japanese colonial period, researchers stumbled upon wild populations of what would come to be known as Taiwan native soybeans in Hsinchu. These indigenous varieties weren't confined to a single location—distribution records reveal their presence across a surprising geographic range, from Taoyuan's Xinwu and Daxi districts to Taipei's Tamsui district, extending south to Kaohsiung and inland to Wushe Township, Nantou County. However, they never achieved the commercial scale necessary for widespread consumption.

Nearly eight decades after that initial discovery, in 2004, Professor Emeritus Huang Tseng Chieng from National Taiwan University's Institute of Plant Biology made a breakthrough. While conducting research near the Songlin Branch of Wanda Reservoir in Nantou, Professor Huang successfully located surviving specimens of Taiwan's indigenous soybean and launched a restoration program. The restored seeds emerged diminutive—no larger than sesame seeds and roughly one-tenth the size of their commercially improved counterparts. Although these miniature legumes lack the immediate culinary applications of their larger cousins, their significance extends far beyond the dinner table. Professor Huang's achievement represents a triumph of Taiwanese agricultural science, demonstrating the island's commitment to preserving its botanical heritage while providing crucial protection against potentially catastrophic pests and diseases.